# MP PET Physics Sample Paper

MP PET Physics Sample Paper

1. The law of far a day is obtained by conservation of :

(1) Charge

(2) Energy

(3) Energy and magnetic field

(4) Magnetic field

2. Two thin lenses are put close to each other, focal length of the combination is :

(1) less than the small focal length

(2) more than the bigger focal length

(3) equal to the arithmetical average of the focal length

(4) equal to the geometrical average of the focal length

3. A car is moving on a horizontal circular path with 10 m/s constant speed. A rigid body is suspended from ceiling of car with a 1 m. long light rod, the angle between rod and path is :

(1) 600

(2) 450

(3) 300

(4) 0

4. Two sources of E1 and E2 emf r1 and r2 internal, resistances, are connected in the parallel combination, the emf of the combination is :

(1) E1E2

(2) E2r1 + E1r2

(3) E1r1 + E2r2

(4) E1 + E2/E1+E2 r1 + r2 r1 + r2 2

5. Ration of radius of two soap bubbles is 2 : 1 then the ratio of their excess pressure is :

(1) 2 : 1

(2) 4 : 1

(3) 1 : 4

(4) 1: 2

6. Ratio of sound velocities is H2 and O2 will be :

(1) 32 : 1

(2) 1 : 4

(3) 16 : 1

(4) 4 : 1

11. In which of the waves the energy is not propagated :

(1) em waves

(2) longitudional waves

(3) stationary waves

(4) transverse waves

12. A body of 2 kg. mass is moving under a force, relation between time and displacement is x = t3 where x in meter and t in time work done in first two seconds is : 3

(1) 1.6 J

(2) 16 J

(3) 160 J

(4) 1600 J

13. A uniform chain of L length and M mass, two third part of chain is on a frictionless table and one third part is vertically suspended, work done to pull the whole chain on table, is :

(1) MgL/18

(2) MgL /9

(3) MgL /6

(4) MgL /3

14. If the intensity and frequency of incident light is doubled then :

(1) photo electric current will become is times

(2) kinetic energy of the emitted electron will be increased and current will be 2 times

(3) kinetic energy of electrons will be 4 times

(4) the kinetic energy of electrons will be 2 times

15. A car travels half distance with 40 kmph and rest half distance with 60 kmph then the average speed of car is :

(1) 60 kmph

(2) 52 kmph

(3) 48 kmph

(4) 40 kmph

16. No. of electrons in the 92 U 235 nucleus is :

(1) 143

(2) 235

(3) 92

(4) zero

17. A lift is moving with acceleration a in upward direction then the force applied by mass m on the floor of lift will be :

(1) ma

(2) m(g-a)

(3) m(g+a)

(4) mg

18. Two cars of m1 and m2 mass are moving in the circular paths of r1 and r2 radius, their speed is such that they travels one cycle in the same time, the ratio of their angular velocities is :

(1) m1r1 : m2r2

(2) 1 : 1

(3) r1 : r2

(4) m1 : m2

19. Size of nucleusis of the order of :

(1) 10-13 cm

(2) 10-10 cm.

(3) 10-8 cm.

(4) 10-15 cm.

20. In a uniform circular motion :

(1) both acceleration and speed changes

(2) both acceleration and speed are constant

(3) both acceleration and velocity are constant

(4) both acceleration and velocity changes

21. Ratio of average kinetic evergies of H2 and O2 at a given temp. is :

(1) 1 : 1

(2) 1 : 4

(3) 1 : 8

(4) 1 : 16

22. To make the working of a machine, free of magnetism, the cover of this machine must be of :

(1) non magnetic substance

(2) diamagnetic substance

(3) paramagnetic substance

(4) ferro magnetic substance

23. A magnet is dropped in a long coppertube vertically, the acceleration of magnet :

(1) equal to g

(2) less than g

(3) zero

(4) greater than g

24. Joule-second is unit of :

(1) rotational power

(2) angular momentum

(3) rotational energy

(4) torgue

25. 1000 drops, each v volt, are combined to form a big drop, then the potential of the drop will be how many times :

(1) 1

(2) 10

(3) 100

(4) 1000

26. . Noble prize presented to Einstein for :

(1) therories of LASER

(2) photo electric effect

(3) theory of relativity

(4) theory of specific heat in solids

27. Kinetic energies of two bodies of 1 kg. and 4 kg. are same, the ratio of their momentum is :

(1) 1 : 16

(2) 1 : 2

(3) √2 : 1

(4) 4 : 1

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