| 1 |
Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be |
- A. 3/4
- B. 9/16
- C. 4/3
- D. 10/9
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| 2 |
If a convex lens is used as a magnifying glass, whcih lens will give higher magnification that has. |
- A. Short size
- B. Long focal length
- C. Large size
- D. Short focal length
|
| 3 |
In case of point source the shape of wave front is. |
- A. Plane
- B. spherical
- C. Circular
- D. Eliptical
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| 4 |
10 N and 20 N are acting on a body of mass 2 kg the minimum acceleration will be. |
- A. 10 ms-2
- B. 20 ms-2
- C. 60 ms-2
- D. 5 ms-2
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| 5 |
Viscosity is represented by Greek letter |
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| 6 |
In rotational motion the torque is equal to rate of change of |
- A. Angular velocity
- B. Linear momentum
- C. Angular momentum
- D. Angular acceleration
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| 7 |
The property of bending of light around obstacles is |
- A. Interference
- B. Diffraction
- C. Polarization
- D. Superposition
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| 8 |
A body covers a distance of 10 m in 1 sec with a constant velocity of 10 ms-1 , Acceleration produced by the body is. |
- A. 0 ms-1
- B. 2 ms-2
- C. 5 ms-2
- D. 10 ms-2
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| 9 |
If r = 5 m and f = 4 N are along same direction, them torque is |
- A. 20 Nm
- B. 5 Nm
- C. 10 Nm
- D. Zero
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| 10 |
As we go from pole to equator of earth, the value of 'g' |
- A. Increase
- B. Decrease
- C. Remain constant
- D. Zero
|