1. What are the dimension of latent heat:
A. MLT2 T2
B. ML2T2
C. M0LT2
D. M0L2 T2
[su_spoiler title=”Show Answer” style=”fancy”]Answer:
M0L2 T2[/su_spoiler]
2. If a current is passed in a spring it:
A. Get compressed
B. Get expanded
C. Oscillates
D. Remain unchanged
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Get compressed[/su_spoiler]
3. The unit of surface energy is:
A. Joule
B. Joule/meter2
C. Newton
D. Newtonmeter2
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Joule/meter2<[/su_spoiler]
4. The angular momentum of a body is conserved, if the acting:
A. Force is zero
B. Torque is zero
C. Force is constant
D. Torque is constant
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Torque is zero[/su_spoiler]
5. A raindrop of radius r falls from a certain height ‘h’ above the ground. The work done by the gravitational force is proportional to:
A. r
B. r2
C. r3
D. r4
[su_spoiler title=”Show Answer” style=”fancy”]Answer: r3[/su_spoiler]
6. Images formed by a convex spherical mirror is:
A. Virtual
B. Real
C. Enlarged
D. Inverted
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Virtual[/su_spoiler]
7. Ther rocket works on the principle of:
A. Conservation of energy
B. Conservation of mass
C. Conservation of linear momentum
D. Conservation of angular momentum/
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Conservation of linear momentum[/su_spoiler]
8. A galvanometer is converted into an ammeter when we connect a:
A. High resistance in series
B. High resistance in parallel
C. Low resistance in series
D. Low resistance in parallel
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Low resistance in parallel[/su_spoiler]
9. In steady state the temperature of cross section area of a rod, changes with time:
A. Decreased
B. Increased
C. Remain same
D. Firstly decreased then increased
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Remain same[/su_spoiler]
10. The unit of impulse is the same as that of:
A. Moment of force
B. Linear momentum
C. Rate of change of linear momentum
D. Force
[su_spoiler title=”Show Answer” style=”fancy”]Answer: Linear momentum[/su_spoiler]
