University : Panjab University
Exam : Physics CET Common Entrance Test
Document Type : Question Booklet
Website : exams.puchd.ac.in
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/exams.puchd.ac.in/5606-20110528144036-qp-p.pdf
Physics CET Question Paper :
Time : 70 minutes
Number of Questions : 60
Maximum Marks : 120
Related : Panjab University Chemistry CET Common Entrance Test Question Paper : www.pdfquestion.in/5593.html
1. The units of M (mass) and L (length) are doubled. The unit of kinetic
(A) 16 (B) 8 (C) 4 (D) 2
2. The dimensions of the quantities in one of the following pairs
(A) Torque and force (B) Angular momentum and work
(C) Light year and wavelength (D) Energy and Young’s modulus
3. The distances travelled by a body freely falling from rest in first,
(A) 1 : 4 : 9 (B) 1 : 3 : 5 (C) 1 : 2 : 3 (D) 3 : 2 : 1
4. At what angle should the two forces 2P and v2P act
(A) 45º (B) 60º (C) 90º (D) 120º
5. At the top of the trajectory of a projectile, the directions
(A) parallel to each other (B) anti-parallel to each other
(C) inclined to each other at an angle of 45º (D) prependicular to each other
6. A particle is acted upon by a force of constant magnitude
(A) its velocity is constant (B) its acceleration is constant
(C) its kinetic energy is constant (D) it moves in a straight line
7. A 15 g bullet is fired horizontally into a 3 kg block of wood
(A) 251 m s–1 (B) 261 m s–1 (C) 271 m s–1 (D) 281 m s–1
8. The two cars C1 and C2 are going around concentric circles
(A) r2/r1 (B) r1/r2 (C) 1 (D) can not be found
9. If the kinetic energy of a body becomes four times of its initial value,
(A) double (B) three times(C) four times (D) unchanged
10. In the elastic collision of heavy vehicle moving with a velocity
(A) 5 m/s (B) 10 m/s (C) 20 m/s (D) 40 m/s
11. The power supplied by a force acting on a particle
(A) vx (B) x (C) x2 (D) x1/3
12. Two rotating bodies have same angular momentum
(A) first (B) second (C) both will have same kinetic energy
13. A cylindrical rod of mass m is of 1 m length.
(A) 1/3 m (B) 2/v3 m (C) 1/2v3 m (D) 1/2 m
14. A body rolls down an inclined plane. If its kinetic energy
(A) ring (B) cylinder (C) spherical shell (D) solid sphere
15. A satellite is moving around the earth with speed –
(A) increase by 1% (B) increase by 0·5%
(C) decrease by 1% (D) decrease by 1·5%
16. If the change in the value of g at a height h above the surface of the earth is the same as that at a depth x below it (assuming h << R and x << R), then
(A) x = h (B) x = 2h
(C) x = h/2 (D) x = h/3
17. The two satellites are at a distance R and 7R above the surface of earth. The ratio of their
(A) potential energies is 7 : 1 (B) kinetic energies is 7 : 1
(C) potential energies is 4 : 1 (D) kinetic energies is 5 : 1
18. A spherical liquid drop of radius R is divided into eight equal droplets. If its surface tension is T, then the work done in the process will be
(A) 2πR2T (B) 3πR2T
(C) 4πR2T (D) 2πRT2
19. Two glass balls of radii r and 2r are dropped in air. The terminal velocity of the ball of radius r is 1 cm/s, then the terminal velocity of the other ball will be
(A) 4 cm/s (B) 2 cm/s
(C) 1 cm/s (D) 0·5 cm/s
20. Two circular metal plates of radius 1 m and 2 m are placed horizontally in a liquid at rest at the same depth. The radio of thrusts on them is
(A) 1 : 4 (B) 4 : 1
(C) 1 : 2 (D) 2 : 1
21. The length and the radius of a wire are halved. The modulus of elasticity of the wire material will be
(A) one fourth (B) halved
(C) doubled (D) unchanged
22. A gram mole of a gas at 127ºC expands isothermally until its volume is doubled. The work done in this expansion is
(A) 238 J (B) 548 cal
(C) 238 cal (D) 548 J
23. A reversible heat engine works between two temperatures whose difference is 100ºC. If it absorbs 746 J of heat from the source and gives 546 J to sink, the temperature of the source is
(A) 173 K (B) 100 K
(C) 373 K (D) 273ºC