| 1 |
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| 2 |
When a body is moving along a circular path, then such a motion is called |
- A. Vibratory motion
- B. Rotatory motion
- C. Linear motion
- D. None of these
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| 3 |
The work done by centripetal force is |
- A. (-)ve
- B. (+)ve
- C. Maximum
- D. Zero
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| 4 |
The largest satellite system is managed by |
- A. 116 countries
- B. 126 countries
- C. 136 countries
- D. 140 countries
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| 5 |
the angular version of F= ma is |
- A. L = 1w
- B. pi = 1a
- C. l = pi a
- D. f = mv/t
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| 6 |
When a body is whirled in a horizontal circle by means of string, the centripetal force is supplied by |
- A. Mass of body
- B. Velocity of a body
- C. Tension in the string
- D. Centripetal acceleration
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| 7 |
INTELSAT VI satellite operates at microwave frequencies of. |
- A. 2,4,6,10 GHz
- B. 4,6,11 and 14 MHz
- C. 4,6,11 and 14 GHz
- D. 2,4,6 AND 14 GHz
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| 8 |
In case of planets centripetal force is provided by |
- A. Coulomb's force
- B. Electrostatic force
- C. Gravitational force
- D. Magnetic force
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| 9 |
The unit of rotational K.E. is |
- A. rAD/SEC
- B. Js
- C. J
- D. Kgm2
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| 10 |
When a body moves in circular motion, the angle between linear and angular velocity is. |
- A. 180<sup>o</sup>
- B. 90<sup>o</sup>
- C. 60<sup>o</sup>
- D. 75.3<sup>o</sup>
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