Physics and Chemistry MCQs
27 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following metals has the highest reducing power based on the given information?

  • Cr
  • K
  • Ag (correct)
  • Al
  • In the reversible expansion of an ideal gas under isothermal and adiabatic conditions, which parameter has the highest value?

  • Isothermal entropy change
  • Isothermal work (correct)
  • Adiabatic temperature change
  • Adiabatic work
  • How many total nodes are there in an orbital that has 3 angular nodes?

  • 3
  • 4
  • 5 (correct)
  • 6
  • In a hydrogen atom, what is the de Broglie wavelength of an electron in the second Bohr orbit?

    <p>$\frac{52.9}{3}$ pm</p> Signup and view all the answers

    After two metal spheres of different sizes with the same surface charge are brought in contact and separated, how do the new surface charge densities compare?

    <p>$\frac{211.6}{\pi}$ $\ ext{pm}^{-1}$</p> Signup and view all the answers

    What is the volume occupied by 1.8 g of water vapor at 374°C and 1 bar pressure?

    <p>55.87 L</p> Signup and view all the answers

    In a simple harmonic motion (SHM), what is the distance covered by a particle in one time period if the amplitude is A?

    <p>A</p> Signup and view all the answers

    When a mass falls from height 'h', and its fall time 't' is recorded in terms of the time period 'T' of a simple pendulum, what is the relationship between t and 2T?

    <p>t = 2T</p> Signup and view all the answers

    What would be the ratio of terminal velocities of two small metal balls, one with a radius of 1 mm and the other with a radius of 2 mm, falling in a viscous medium with the given conditions?

    <p>t' &lt; 2T'</p> Signup and view all the answers

    What frequency does a tuning fork with 800 Hz produce when it resonates in a column tube with the upper end open and the lower end closed by water?

    <p>72 Hz</p> Signup and view all the answers

    In the context of placental types, which type has the ovules attached to the placenta at the base of the ovary?

    <p>Basal</p> Signup and view all the answers

    What is the process of exploring molecular, genetic, and species level diversity for novel economic products called?

    <p>Bioprospecting</p> Signup and view all the answers

    Which method is considered an innovative solution for plastic waste?

    <p>Polyblend</p> Signup and view all the answers

    What is the primary purpose of using a selectable marker in genetic engineering?

    <p>Help in eliminating non-transformants to regenerate transformants</p> Signup and view all the answers

    What causes the pendulum to tilt to the left in the frame of the truck?

    <p>Angle of inclination of the Page</p> Signup and view all the answers

    In which relationship is the coexistence between Orchid and the tree on which it grows NOT an example of?

    <p>Commensalism</p> Signup and view all the answers

    If the energy gap of the LED is 1.9 eV, what will be the wavelength of the light emitted?

    <p>654 nm</p> Signup and view all the answers

    What term is used to describe plant and animal species found exclusively in a specific geographical area like the Western Ghats?

    <p>Endemic</p> Signup and view all the answers

    In the U-tube, when water and oil columns are at 15 cm and 20 cm respectively, what is the density of the oil?

    <p>1333 kg/m^3</p> Signup and view all the answers

    What logic gate does the circuit diagram shown correspond to?

    <p>NOR</p> Signup and view all the answers

    What does the thickness of the ice layer depend on in the rectangular pond scenario?

    <p>Outside air temperature</p> Signup and view all the answers

    What is the angle of inclination with respect to the vertical in the case of the pendulum in the truck?

    <p>$\tan^{-1}(ga)$</p> Signup and view all the answers

    What is the radius of curvature of the surface with a refractive index of 1.5 if the radius of curvature of the other surface is 157?

    <p>314</p> Signup and view all the answers

    When a particle of mass 5m breaks into three fragments, two fragments move in mutually perpendicular directions with speeds of 100 cm/s and 50 cm/s. What is the total energy released during this process?

    <p>$18.75m$</p> Signup and view all the answers

    Two bullets are fired simultaneously towards each other from rooftops of buildings 100m apart with a velocity of 25 m/s. When and where will the two bullets collide?

    <p>They will not collide</p> Signup and view all the answers

    If an object of mass 500g initially at rest is acted upon by a variable force, what are the respective velocities of the object at x = 8m and x = 12m after 2 seconds?

    <p>$23 m/s$ and $24.4 m/s$</p> Signup and view all the answers

    In stress-strain curves for materials X and Y, if material X has its ultimate strength point close to the fracture point while material Y has them far apart, what can be concluded about materials X and Y?

    <p>Brittle and ductile</p> Signup and view all the answers

    Use Quizgecko on...
    Browser
    Browser