PHY101 Physics Update MCQ'S Final Term Vu Topper RM PDF

PHY101-Physics Update MCQ’S Final Term By Vu Topper RM Rizwan Manzoor @vutopperrm Vu Topper RM d cc For More Help Contact What’s app 03224021365 Question No:1 (Ma...

PHY101-Physics Update MCQ’S Final Term By Vu Topper RM Rizwan Manzoor @vutopperrm Vu Topper RM d cc For More Help Contact What’s app 03224021365 Question No:1 (Marks:1) Vu-Topper RM The image produced by a convex mirror of an erect object in front of the mirror is always: A. Real, erect, and larger than the object B. Real, erect, and smaller than the object C. Virtual, erect, and larger than the object D. Virtual, erect, and smaller than the object Question No:2 (Marks:1) Vu-Topper RM In some movies, you sometimes see an actor looking in a mirror and you can see his face in the mirror. During the filming of this scene, what does the actor see in the mirror? A. His face B. Your face C. The director's face D. The movie camera Question No:3 (Marks:1) Vu-Topper RM A femtometer is: A. 10-9 m B. 10-12 m C. 10-15 m D. 10-18 m Question No:4 (Marks:1) Vu-Topper RM The "strength" of a lens is measured in _________. A. Meters B. Diopters C. Provatans D. Lense meter For More Help Contact What’s app 03224021365 Question No:5 (Marks:1) Vu-Topper RM When an object (iron/tungsten) is heated, it emits light. It emits infrared (IR) light when it is heated at a temperature __________. A. Below 800 degree C B. Above 2500 degree C C. Between 800 degree C to 1600 degree C D. Between 1600 degree C to 2500 degree C Question No:6 (Marks:1) Vu-Topper RM The reason there are two slits, rather than one, in a Young’s experiment is: A. To increase the intensity B. To create a path length difference C. One slit is for frequency, the other for wavelength D. One slit is for Electric fields , the other is for Magnetic fields Question No:7 (Marks:1) Vu-Topper RM An electron is moving at 0.6c.If we calculate its kinetic energy using (1/2) mv2, we get a result that is: A. Just right B. Just half enough C. About 28% too low D. Twice the correct value Question No:8 (Marks:1) Vu-Topper RM The theoretical upper limit for the frequency of electromagnetic waves is: A. There is no upper limit B. Both C. None of these D. Just slightly greater than that of red light For More Help Contact What’s app 03224021365 Question No:9 (Marks:1) Vu-Topper RM One revolution is the same as: A. 1 rad B. 57 rad C. π/2 rad D. 2π rad Question No:10 (Marks:1) Vu-Topper RM For a body to be in equilibrium under the combined action of several forces: A. All the forces must be applied at the same point B. All the forces must be applied at the same point C. All of the forces form pairs of equal and opposite forces D. Any two of these forces must be balanced by a third force Question No:11 (Marks:1) Vu-Topper RM Capacitors C1 and C2 are connected in series. The equivalent capacitance is given by A. C1/C2 B. 1/(C1 + C2) C. C1C2/(C1 + C2) D. (C1 + C2)/C1C2 Question No:12 (Marks:1) Vu-Topper RM If the potential difference across a resistor is doubled: A. Only the current is halved B. Only the resistance is halved C. Only the current is doubled D. Only the resistance is doubled For More Help Contact What’s app 03224021365 Question No:13 (Marks:1) Vu-Topper RM By using only two resistors, R1 and R2, a student is able to obtain resistances of 3Ω, 4Ω, 12Ω, and 16 Ω. The values of R1 and R2 (in ohms) are: A. 3, 4 B. 2, 12 C. 3, 16 D. 4, 12 Question No:14 (Marks:1) Vu-Topper RM Faraday's law states that an induced emf is proportional to: A. The rate of change of the electric flux B. The rate of change of the electric field C. The rate of change of the magnetic field D. The rate of change of the magnetic flux Question No:15 (Marks:1) Vu-Topper RM A generator supplies 100V to the primary coil of a transformer. The primary has 50 turns and the secondary has 500 turns. The secondary voltage is: A. 500V B. 250V C. 100V D. 1000V Question No:16 (Marks:1) Vu-Topper RM Which of the following electromagnetic radiations has photons with the greatest energy? A. X rays B. Blue light C. Radio waves D. Yellow light For More Help Contact What’s app 03224021365 Question No:17 (Marks:1) Vu-Topper RM We desire to make an LC circuit that oscillates at 100 Hz using an inductance of 2.5H. We also need a capacitance of: A. 1 F B. 1mF C. 1 μF D. 100 μF Question No:18 (Marks:1) Vu-Topper RM The wavelength of red light is 700 nm. Its frequency is _______. A. 4.30 * 104 Hertz B. 4.30 * 103 Hertz C. 4.30 * 105 Hertz D. 4.30 * 102 Hertz Question No:19 (Marks:1) Vu-Topper RM Which of the following statements is NOT TRUE about electromagnetic waves? A. Electromagnetic waves cannot travel through space. B. Electromagnetic waves satisfy the Maswell's Equation. C. The receptions of electromagnetic waves require an antenna. D. The electromagnetic radiation from a burning candle is unpolarized. Question No:20 (Marks:1) Vu-Topper RM Radio waves and light waves are A. Transverse waves B. None of the these C. Longitudinal waves D. Electromagnetic and transverse both For More Help Contact What’s app 03224021365 Question No:21 (Marks:1) Vu-Topper RM An ideal gas expands into a vacuum in a rigid vessel. As a result there is: A. A change in entropy B. An increase of pressure C. A change in temperature D. A decrease of internal energy Question No:22 (Marks:1) Vu-Topper RM The Stern-Gerlach experiment makes use of: A. A strong uniform electric field B. A strong uniform magnetic field C. A strong non-uniform electric field D. A strong non-uniform magnetic field Question No:23 (Marks:1) Vu-Topper RM A net torque applied to a rigid object always tends to produce: A. Rotational inertia B. Linear acceleration C. Rotational equilibrium D. Angular acceleration Question No:24 (Marks:1) Vu-Topper RM As the wavelength of a wave in a uniform medium increases, its speed will _____. A. Increase B. Decrease C. None of these D. Remain the same For More Help Contact What’s app 03224021365 Question No:25 (Marks:1) Vu-Topper RM An organ pipe with both ends open is 0.85m long. Assuming that the speed of sound is 340m/s, the frequency of the third harmonic of this pipe is: A. 200 Hz B. 300 Hz C. 400 Hz D. 600 Hz Question No:26 (Marks:1) Vu-Topper RM Room temperature is about 20 degrees on the: A. Kelvin scale B. Celsius scale C. Absolute scale D. Fahrenheit scale Question No:27 (Marks:1) Vu-Topper RM A particle with zero mass and energy E carries momentum: A. Ec B. E/c C. Ec2 D. vEc Question No:28 (Marks:1) Vu-Topper RM J.J.Thompson’s measurement of e/m for electrons provides evidence of the: A. Wave nature of matter B. Wave nature of radiation C. Particle nature of matter D. Particle nature of radiation For More Help Contact What’s app 03224021365 Question No:29 (Marks:1) Vu-Topper RM During a slow adiabatic expansion of a gas: A. Energy is added as heat B. Work is done on the gas C. The pressure remains constant D. No energy enters or leaves as heat Question No:30 (Marks:1) Vu-Topper RM A force of 5000N is applied outwardly to each end of a 5.0-m long rod with a radius of 34.0 cm and a Young’s modulus of 125 × 108 N/m2. The elongation of the rod is: A. 0.55mm B. 1.42mm C. 2.24mn D. 0.56nm Question No:31 (Marks:1) Vu-Topper RM An object attached to one end of a spring makes 20 complete oscillations in 10 s. Its period is: Select correct option: A. 2 s B. 2Hz C. 0.5 s D. 0.5Hz Question No:32 (Marks:1) Vu-Topper RM back and forth in a leftward and rightward direction. This type of wave is known as a A. Transverse B. Mechanical C. Longitudinal D. Electromagnetic For More Help Contact What’s app 03224021365 Question No:33 (Marks:1) Vu-Topper RM The flow rate of blood through the average human aorta is about 9.0 ? 101 cm3/s. If the aorta has a radius of 1.0 cm, what is the velocity of the blood flow? A. 14 cm/s B. 32 cm/s C. 37 cm/s D. 29 cm/s Question No:34 (Marks:1) Vu-Topper RM Metal pipes, used to carry water, sometimes burst in the winter because: A. Metal contractst more han water B. Metal becomes brittle when cold C. Water expands when it freezes D. Outside of the pipe contracts more than the inside Question No:35 (Marks:1) Vu-Topper RM Which one of is in the order of decreasing frequency? A. Ultraviolet rays B. Visible light C. Radio waves D. All Question No:36 (Marks:1) Vu-Topper RM If velocity of a conductor moving through a magnetic field B is made zero then motional emf is: -VBL Question No:37 (Marks:1) Vu-Topper RM The lenz’s law refers to: Induced current For More Help Contact What’s app 03224021365 Question No:38 (Marks:1) Vu-Topper RM The increase in capacitance of a capacitor due to presence of dielectric is due to: Electric polarization Question No:39 (Marks:1) Vu-Topper RM inductance L and a capacitance C has an oscillation frequency f. Two inductors, each with inductance L, and two capacitors, each with capacitance C, are all wired in series and the circuit is completed. The oscillation F Question No:40 (Marks:1) Vu-Topper RM Which of the following is equivalent to one coulomb? One ampere second Question No:41 (Marks:1) Vu-Topper RM Tesla is a unit of Magnetic flux Question No:42 (Marks:1) Vu-Topper RM The current in a car headlamp is 2.0 A. The headlamp is switched on for 3.0 minutes. How much charge passes through the headlamp? 360c Question No:43 (Marks:1) Vu-Topper RM In constructing a thermometer it is NECESSARY to use a substance that: Undergoes some change when heated or cooled For More Help Contact What’s app 03224021365 Question No:44 (Marks:1) Vu-Topper RM A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called: Perfect gases Question No:45 (Marks:1) Vu-Topper RM In RL series circuit phase angle is given by: Tan-1(wl/R) Question No:46 (Marks:1) Vu-Topper RM Which of the following have the greatest wavelength? Radio waves Question No:47 (Marks:1) Vu-Topper RM When a charge is projected perpendicular to a uniform magnetic field, its path is: A circular path Question No:48 (Marks:1) Vu-Topper RM When two objects come to common temperature, the body is said to be in: Thermal equilibrium Question No:49 (Marks:1) Vu-Topper RM Which method(s) of heat transfer can take place in vacuum? Electromagnetic waves Question No:50 (Marks:1) Vu-Topper RM A step-down transformer is used to: Decrease the voltage For More Help Contact What’s app 03224021365 Question No:51 (Marks:1) Vu-Topper RM In an adiabatic process: The work done by the environment on the system equals the change in internal energy. Question No:52 (Marks:1) Vu-Topper RM The focal length of a spherical mirror is N times its radius of curvature where N is: F=R/2 Question No:53 (Marks:1) Vu-Topper RM Capacitive reactance Xc is: 1/2 π fc Question No:54 (Marks:1) Vu-Topper RM Force per unit charge is: Electric field. Question No:55 (Marks:1) Vu-Topper RM If the kinetic energy of a free particle is much less than its rest energy then its kinetic energy is proportional to: The square of the magnitude of its momentum Question No:56 (Marks:1) Vu-Topper RM Which physical quantity is produced by a calculation where a charge is multiplied by a potential difference (p.d)? Energy Question No:57 (Marks:1) Vu-Topper RM Work done on a charged particle moving in uniform magnetic field is: Zero For More Help Contact What’s app 03224021365 Question No:58 (Marks:1) Vu-Topper RM Which of the following is equivalent to 1 V? 1 Joule/1 coulomb = 1 J/C Question No:59 (Marks:1) Vu-Topper RM If Io is the peak value of an AC supply, then its rms value is given as Irms:? IO/square root2 Question No:60 (Marks:1) Vu-Topper RM Heat has the same units as: Work Question No:61 (Marks:1) Vu-Topper RM Which of the following types of electromagnetic radiation at the vacuum? (Radio, gamma, x)rays All of these travel at the same speed Question No:62 (Marks:1) Vu-Topper RM Inductive reactance XL of an inductor is pi 2(pi)Fl Question No:63 (Marks:1) Vu-Topper RM The sum of electric and magnetic force is called Lorentz force Question No:64 (Marks:1) Vu-Topper RM Kirchhoff’s 2nd rule is the manifestation of the law of conservation of Energy For More Help Contact What’s app 03224021365 Question No:65 (Marks:1) Vu-Topper RM The total energy in an circuit is 5.0 * 10-6 J. if L=25mH the maximum current is: 20mA Question No:66 (Marks:1) Vu-Topper RM The potential difference between the ends of a conductor is 12V. How much electrical energy is converted to other forms of energy in the conductor when 100C of charge flows through it? 1200J Question No:67 (Marks:1) Vu-Topper RM The Focal length of convex lens is: Positive Question No:68 (Marks:1) Vu-Topper RM The AC circuit in which current and voltage are in phase the power factor is 1 Question No:69 (Marks:1) Vu-Topper RM The known laws of electromagnetism before James Clerk Maxwell were following EXCEPT Faraday’s Law Question No:70 (Marks:1) Vu-Topper RM When some dielectric is inserted between the plates of a capacitor, then capacitance; Increased For More Help Contact What’s app 03224021365 Question No:71 (Marks:1) Vu-Topper RM Which of the following is NOT the characteristics of electromagnetic waves? They can travel with different speeds in vacuum depending on0.4m Question No:72 (Marks:1) Vu-Topper RM The quantity of deltaV/deltar is called Potential gradient Question No:73 (Marks:1) Vu-Topper RM Which electromagnetic radiation transmits the highest photon energy? Gamma rays Question No:74 (Marks:1) Vu-Topper RM The reaction of an particle at 50 Hz is 10.0 its reactance at 100Hz becomes 5.0 Question No:75 (Marks:1) Vu-Topper RM Select the correct statement Gamma Rays have higher frequency than infrared waves Question No:76 (Marks:1) Vu-Topper RM Potentiometer can be used as Potential divider Question No:77 (Marks:1) Vu-Topper RM All of the followings are the different types of mental images; people generally experience them while close their eyes Except: Solving an algebra equations For More Help Contact What’s app 03224021365 Question No:78 (Marks:1) Vu-Topper RM The nation that motivational state of the organism is understood and explained in terms of positive and negative environmental stimuli BEST connects to; Incentive approaches Question No:79 (Marks:1) Vu-Topper RM If one wants to increase the capacity of short-term memory, through which process more items can be held? Chunking Question No:80 (Marks:1) Vu-Topper RM If potential difference across two plates of a capacitor is doubled, then Four times Question No:81 (Marks:1) Vu-Topper RM How could the unit of potential difference the volt also be written? J/C Question No:82 (Marks:1) Vu-Topper RM If magnetic field is doubled then magnetic energy density becomes Four times Question No:83 (Marks:1) Vu-Topper RM The primary of a 3.1 step-up transformer is connected to a source and the secondary this situation is P. If R is connected directly to the source it will dissipate a power of: P/9 Question No:84 (Marks:1) Vu-Topper RM A particle having 2e charge falls through a potential difference of 5.V energy acquired by it is 10 eV For More Help Contact What’s app 03224021365 Question No:85 (Marks:1) Vu-Topper RM The combined effect of resistance and reactance is known as Impedance Question No:86 (Marks:1) Vu-Topper RM A transparent refracting medium bounded by the two curved surfaces called Prism Question No:87 (Marks:1) Vu-Topper RM A student rubs a rod held in his hand. Which action causes the rod to gain a large electrostatic charge Rubbing a polythene rod with a woolen duster Question No:88 (Marks:1) Vu-Topper RM A charge of 30 C flows through an electric appliance in 2.0 minutes. What is the average current in the appliance? 0.25A Question No:89 (Marks:1) Vu-Topper RM Total flux through a closed surface depends on Charge and -N Question No:90 (Marks:1) Vu-Topper RM Electromagnetic waves emitted from antenna are Transverse Question No:91 (Marks:1) Vu-Topper RM Two parallel straight wires carrying current in same direction will. Attract each other For More Help Contact What’s app 03224021365 Question No:92 (Marks:1) Vu-Topper RM Charge carriers in electrolysis are: Positive and negative ions Question No:93 (Marks:1) Vu-Topper RM A detector is used to detect the speed at a particular wave if the frequency of an electromagnetic signal is 400 MHz, the speed define the detector is 300000 km/s Question No:94 (Marks:1) Vu-Topper RM The product of resistance and capacitance is called Time Question No:95 (Marks:1) Vu-Topper RM Greenhouse gases absorb ____ radiation Infrared Question No:96 (Marks:1) Vu-Topper RM Electromagnetic waves do not transport Charge Question No:97 (Marks:1) Vu-Topper RM Electric energy is measured : Watt Question No:98 (Marks:1) Vu-Topper RM Of the following which might NOT vanish over one cycle of a cyclic process? The work done by the substance For More Help Contact What’s app 03224021365 Question No:99 (Marks:1) Vu-Topper RM The most refined form of matter is: Light Question No:100 (Marks:1) Vu-Topper RM In Compton scattering from stationary particles the maximum change in wavelength can be made smaller by using. More massive particles Question No:101 (Marks:1) Vu-Topper RM Hotness or coldness of an object is represented in terms of: Temperature Question No:102 (Marks:1) Vu-Topper RM The unit of thermal conductivity might be: Cal/(cm*s*C?) Question No:103 (Marks:1) Vu-Topper RM It is more di? Cult to measure the coe? Cient of volume expansion of a liquid than that of a solid because? The containing evessel aslo xpands Question No:104 (Marks:1) Vu-Topper RM When we accelerate the charge, which types of waves are produced? Electromagnetic waves Question No:105 (Marks:1) Vu-Topper RM Due to relative motion of observer and the frames of reference of events, time always: Statics itself For More Help Contact What’s app 03224021365 Question No:106 (Marks:1) Vu-Topper RM The allowed energy states of atoms or molecules can be described by a set of _______. Quantum numbers Question No:107 (Marks:1) Vu-Topper RM Probability values are assigned on a scale of 0 to 1 Question No:108 (Marks:1) Vu-Topper RM The magnitude of the momentum of a particle can never exceed: E/c, where E is its total energy Question No:109 (Marks:1) Vu-Topper RM The ratio of the size of image to the size of object. Angular magnification Question No:110 (Marks:1) Vu-Topper RM When white light passes through a prism, it splits into _____ colors. 7 Question No:111 (Marks:1) Vu-Topper RM A heat of transformation of a substance is: The energy per unit mass absorbed as heat during a phase transformation Question No:112 (Marks:1) Vu-Topper RM If electric and gravitational force on an electron in a uniform electric field balance each other, then the intensity of electric field will be: Mg/q For More Help Contact What’s app 03224021365 Question No:113 (Marks:1) Vu-Topper RM During a slow adiabatic expansion of a gas No energy enters or leaves as heat 52 Question No:114 (Marks:1) Vu-Topper RM The electron states that constitute a single shell for an atom all have: The same value of n Question No:115 (Marks:1) Vu-Topper RM An isothermal process for an ideal gas is represented on a p-V diagram by: A portion of a hyperbola Question No:116 (Marks:1) Vu-Topper RM The concept of an electric field lines is introduced by: Faraday Question No:117 (Marks:1) Vu-Topper RM The pauli exculusion principle is obeyed by: All particles with spin quantum numbers of ½ Question No:118 (Marks:1) Vu-Topper RM An electron (m=9.11 * 10-31kg) has a speed of 0.95C. its kinetic energy is; 1.8*10-31J Question No:119 (Marks:1) Vu-Topper RM An electron (m=9.11 x 10-31kg) has a momentum of 4.0x10-22kg*m/s. Its kinetic energy: 6.3*10-14J For More Help Contact What’s app 03224021365 Question No:120 (Marks:1) Vu-Topper RM Force on a charged particle is zero when projected at angle with the magnetic field 0 degree Question No:121 (Marks:1) Vu-Topper RM In case of metallic conductors, the charge carriers are. Electrons Question No:122 (Marks:1) Vu-Topper RM As compared to distance measured by an observer on Earth, the distance from earth star measured by an observer in a moving spaceship would seem: Same Question No:123 (Marks:1) Vu-Topper RM Evidence that a gas consists mostly of empty space is the fact that The density of a gas becomes much greater when it is Liquefied Question No:124 (Marks:1) Vu-Topper RM For an electron, the rest mass energy is: 0.511 MeV Question No:125 (Marks:1) Vu-Topper RM Antiparticle of electron is: Position Question No:126 (Marks:1) Vu-Topper RM According to the first law of thermodynamics, applied to a gas, the increase in the internal energy during any process Equals the heat input plus the work done on the gas For More Help Contact What’s app 03224021365 Question No:127 (Marks:1) Vu-Topper RM The approach to personality stresses that people possess a basic goodness, and have a natural tendency to grow to higher levels of functioning is. Humanistic Question No:128 (Marks:1) Vu-Topper RM In a photoelectric experiment at a frequency above cut off, the stopping potential is proportional to : The energy of the most energetic electron after it is ejected Question No:129 (Marks:1) Vu-Topper RM There is a temperature at which the reading on the kelvin scale is numerically: Equal to that on the Celsius scale Question No:130 (Marks:1) Vu-Topper RM When you stand in front of a plane mirror, your image is: Virtual, erect and the same size as you Question No:131 (Marks:1) Vu-Topper RM The process for which entropy remains constant is: A reversible process Question No:132 (Marks:1) Vu-Topper RM The appearance of colors in thin film is due to: Interference Question No:133 (Marks:1) Vu-Topper RM The theoretical uppr limit for the frequency of electromagnetic waves is: There is no upper limit For More Help Contact What’s app 03224021365 Question No:134 (Marks:1) Vu-Topper RM Capacitance of a capacitor in vaccum is given by: A eo /d Question No:135 (Marks:1) Vu-Topper RM AN electron in a K shell of an atom has the principal quantum number: N =1 Question No:136 (Marks:1) Vu-Topper RM Bending of light around the edges of an obstacle called: Diffraction Question No:137 (Marks:1) Vu-Topper RM Interface of light is evidence that: Light is a wave phenomenon Question No:138 (Marks:1) Vu-Topper RM In a photoelectric e? ect experiment at a frequency above cut o? the number of electrons ejected is proportional to: The number of photons that hit the sample Question No:139 (Marks:1) Vu-Topper RM In a photoelectric e? ect ecperiment the stopping potential is: The electric potential that causes the electron current to vanish Question No:140 (Marks:1) Vu-Topper RM A free electron and a free proton have the same kinetic energy. This means that, compared to the matter wave associated with the proton, the matter wave associated with the electron has: A longer wavelength and the same frequency For More Help Contact What’s app 03224021365 Question No:141 (Marks:1) Vu-Topper RM Polarization experiments provide evidence that light is: A transverse wave Question No:142 (Marks:1) Vu-Topper RM If light of low wavelength is used in young’s double slit experiment, then width of the fringe will: Decreases Question No:143 (Marks:1) Vu-Topper RM Lenz’s law is in accordance with law of conservation of Energy Question No:144 (Marks:1) Vu-Topper RM According to relatively theory a particle of mass m with a momentum of 2mc has a speed of: c/2 Question No:145 (Marks:1) Vu-Topper RM The two metallic strips that constitute some thermostats must di? Er in: Coefficient of linear expansion Question No:146 (Marks:1) Vu-Topper RM Phase difference between V and I of an AC through resistor is: 0 degree Question No:147 (Marks:1) Vu-Topper RM Average value of current and voltage over complete cycle is: Zero For More Help Contact What’s app 03224021365  Visit My YouTube Channel For Subjective and More Important Files Channel Name = #VuTopperRM For More Help Contact What’s app 03224021365