| 1 |
Motion of a screw of rotating fan is |
- A. Circular Motion
- B. Vibratory motion
- C. Rotatory motion
- D. Random Motion
|
| 2 |
A force is acting on body but causes no displacemtn. The work done on the body is |
- A. Negative
- B. Zero
- C. Positive
- D. Infinite
|
| 3 |
When the slope of a body's displacemnt time graph increase the body is moving with |
- A. Constant velocity
- B. Increasign velocity
- C. Decreasing velocity
- D. All of these
|
| 4 |
What is the power utilized when 100 J of work is done in 5 s.10 W |
- A. 10 W
- B. 500 W
- C. 20 W
- D. 105 W
|
| 5 |
You are trying to loosen a nut using a spanner, but it is not working In order to open the nut, you need to. |
- A. Use plastic and soft spanner
- B. Use a spanner of small length
- C. Insert a pipe to increase length of spanner
- D. Tie a rope with spanner
|
| 6 |
A ball with initial momentum p its a solid wall and bounces back with the same velocity. Its momentum p after collision will be. |
- A. P' = p
- B. P' = - P
- C. P' = 2P
- D. P' =-2P
|
| 7 |
Micro meter can be used to measure. |
- A. Current
- B. Length
- C. Force
- D. Mass
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| 8 |
Which of the following can increase the sensitivity of liquid in glass thermometer. |
- A. Changes colour on temperture
- B. Use a longer capillary tube
- C. Use a bigger bulb which contains more amount of liquids
- D. Using long specific its
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| 9 |
Which of the following physical properties is used in a mercury thermometer. |
- A. Colour
- B. Pressure
- C. Volume
- D. Electrical resistance
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| 10 |
A particle of mass m moving with a velocity v collides with another particle of the same mass at rest. The velocity of the first particle after collision is. |
|