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Aakash byjus Nagpur dharampeth NEET MOCK TEST Entrance Exam - NEET-UG Time Allowed: 3 hours Maximum Marks: 200 1. Given that th...

Aakash byjus Nagpur dharampeth NEET MOCK TEST Entrance Exam - NEET-UG Time Allowed: 3 hours Maximum Marks: 200 1. Given that the displacement of an oscillating particle is given by y = A sin(Bx + Ct + D). The dimensional formula for (ABCD) is: a) [M0L-1T-1] b) [M0L0T0] c) [M0L-1T0] d) [M0L0T-1] 2. The dimensions of strain are: a) ML-1T-2 b) it is dimensionless c) L2 d) L 3. Which of the following physical quantity has the dimension of [ML2T-3]? a) Pressure b) Work c) Impulse d) Power 4. The solid angle subtended by the periphery of an area 1cm2 at a point situated symmetrically at a distance of 5 cm from the area is a) 6 × l0-2 steradian b) 8 × 10-2 steradian c) 4 × l0-2 steradian d) 2 × 10-2 steradian 5. A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between the Sun and the Earth in terms of the new unit if light takes 8 min and 20 s to cover this distance? a) 500 b) 450 c) 600 d) 550 6. Which of the following is not a physical quantity? a) Time b) Impulse c) Kilogram d) Mass  7. The dimensions of torque are: -1 2 2 a) [MLT ] b) [ML T ] c) [ML2T-2] d) [M2L2T-2] 8. Which of the following have same dimensions? a) torque and force b) potential energy and force c) Planck's constant and d) torque and potential energy momentum 9. The frequency of vibration f of a mass m suspended from a spring of spring constant k is given by a relation f = amxky, where a is a dimensionless constant. The values of x and y are a) x = 1 2 ,y = − 1 2 b) x = 1 2 ,y = 1 2 c) x = − 1 2 ,y = − 1 2 d) x = − 1 2 ,y = 1 2 10. Which of the following quantities can be written in SI units in kgm2A-2s-3? a) Inductance b) Capacitance c) Resistance d) Magnetic flux 11. According to Newton, the viscous force acting between liquid layers of area A and velocity gradient Δv Δx is given by F = −ηA Δv Δx , where η is constant called coefficient of viscosity. The dimensional formula of η is a) [ML-2T-2] b) [M0L0T0] c) [ML-1T-1] d) [ML2T-2] 12. The dimensions of universal gravitational constant are a) [ML-1T-2] b) [M-1L3T-2] -2 -2 2 -1 c) [ML T ] d) [ML T ] 13. The quantity having the same unit in all system of unit is a) mass b) time c) length d) temperature 14. Which one of the following pairs of quantities has the same dimension? a) surface tension and stress b) momentum and impulse c) pressure and force d) force and work done 15. Obtain the dimensional equation for universal gas constant. a) [M L2 T-2 mol-1 K-1] b) [M L3 T-1 mol-2 K-2] c) [M2 LT-1 mol-1 K-1] d) [M3 LT-2 mol-1 K-2] 16. In the formula x = 3yz2, x and z have dimensions of capacitance and magnetic induction, respectively. The dimensions of y in MKS system are a) [M-2 L-2 T4 A4] b) [M-3 L-3 T4 A5] c) [M-3 L-2 T8 A4] d) [M-1 L-4 T2 A4] 17. The number of significant digits in 0.2370 is a) 4 b) 3 c) 5 d) 6 18. If L = 2.331 cm, B = 2.1 cm, then L + B = ? a) 4.43 cm b) 4 cm c) 4.431 cm d) 4.4 cm 19. The significant figures of the number 6.0023 are: a) 4 b) 1 c) 5 d) 2 20. In the relation, y = r sin (ω t + kx), the dimensional formula for kx or ω t is same as: a) ωt r b) r ω c) r y d) yr ωt 21. Which of the following is a dimensionless quantity? a) Specific heat b) Strain  c) Stress d) Quantity of heat 22. The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give a) 2.74 and 2.74 b) 2.75 and 2.74 c) 2.75 and 2.73 d) 2.74 and 2.73 23. The number of significant digits in 900.06 is a) 4 b) 1 c) 3 d) 5 24. The number of significant figures in the numbers 4.8000 × 104 and 48000.50 are respectively. a) 5 and 6 b) 2 and 6 c) 2 and 7 d) 5 and 7 25. The dimensions of Kinetic energy is same as that of a) Pressure b) Work c) Momentum d) Force 26. The mass and volume of a body are 4.237 g and 2.5 cm3, respectively. The density of the material of the body in correct significant figures is a) 1.69 g cm-3 b) 1.7 g cm-3 -3 -3 c) 1.6048 g cm d) 1.695 g cm 27. The number of significant digits in 8.1000 is a) 3 b) 5 c) 4 d) 1 28. If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then energy has the dimensional formula. a) (P2 A1 T1) b) (P1 A-1/2 T1) 1 -1 1 1 1/2 -1 c) (P A T ) d) (P A T ) 29. Dimensions of Hubble's constant are: a) [T-1] b) [M0L0T-2] c) [MLT4] d) [MLT1] 30. Dimensions of coeffcient of viscosity are: a) [ML-3T-4] b) [MT2] c) [ML-1T-1] d) [ML-1T-2] 31. Physical quantities are a) quantities such as kilos, pounds b) quantities such as length, mass and gallons. and time. c) quantities such as pounds, d) quantities such as degrees, dollars and rupees. radians and steradians. 32. The units of Planck's constant are: a) Js b) Js2 c) J/s d) Js-2 33. If the unit of force is 1 kilonewton, the length is 1 km and time 100 s, what will be the unit of mass? a) 1,000 kg b) 10,000 kg c) 100 kg d) 1 kg 34. The unit of a in van der Waal's gas equation is: a) atm L2 per mol b) atm L-1 mol-2 c) atm L2 mol-2 d) atm L-2 mol2 35. If the energy, E = Gphqcr, where G is the universal gravitational constant, h is the Planck's constant and c is the velocity of light, then the values of p, q and r are, respectively a) , − and − 1 2 1 2 5 2 b) , − and − 1 2 1 2 3 2 c) − , 1 2 1 2 and 5 2 d) − , 1 2 1 2 and 3 2 36. The equation (P + a ) (V − b) = Constant. The units of a are 2 V a) dyne cm-2 b) dyne × cm5 c) dyne × cm4 d) dyne cm-3 37. The dimension of torque is a) [ML-1T-1] b) [MLT-2] c) [ML2T-2] d) [ML3T-3] 38. The ratio of the dimensions of Planck constant and that of the moment of inertia is the dimensions of a) time b) velocity c) frequency d) angular momentum 39. The number of significant figures in 0.06900 is a) 4 b) 5 c) 2 d) 3 40. If C and R denote capacitance and resistance, the dimensional formula of CR is 0 0 -1 a) not expressible in terms of MLT b) [M L T ] 0 0 1 0 0 0 c) [M L T ] d) [M L T ] -6 -5 41. If 3.8 × 10 is added to 4.2 × 10 giving due regard to significant figures, then the result will be a) 35 × 10-5 b) 4.6 × 10-5 -5 -5 c) 45 × 10 d) 4.58 × 10 42. Which of the following has same dimension as that of Planck constant? a) Angular momentum b) Impulse c) Linear momentum d) Work 43. The number of significant digits in 0.0006032 m is 2  a) 4 b) 6 c) 5 d) 3 44. Dimensions of bulk modulus are: -1 -2 -2 -2 a) [M LT ] b) [ML T ] c) [M2L2T-1] d) [ML-1T-2] 45. Turpentine oil is flowing through a tube of length l and radius r. The pressure difference between the two ends of the tube is P. The viscosity of oil is given by 2 2 P (r −x ) η = 4vl , where v is the velocity of oil at a distance x from the axis of the tube. The dimensions of η are -1 -1 2 -2 a) [ML T ] b) [ML T ] c) [M0L0T0] d) [MLT-1] 46. _________ are units of physical quantity that can be expressed as a combination of fundamental physical quantities. a) Complex units b) Basic units c) Derived units d) Simple units 47. The dimensional formula of angular momentum is a) [ML-2T-1] b) [ML2T-2] -1 2 -1 c) [MLT ] d) [ML T ] 2 -2 48. [ML T ] are dimensions of: a) moment of force b) force c) momentum d) power 49. Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant? a) Acceleration due to gravity b) Surface tension of water c) Weight of a standard kilogram d) The velocity of light in vacuum mass 50. The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are -1 -2 a) kgms b) kgms c) kgs-1 d) kgs