| 1 |
The equations of motion hold good for |
- A. Variable acceleration
- B. Uniform acceleration
- C. Centripetal acceleration
- D. All of these
|
| 2 |
A force of 100 N makes on angle of 60<sup>o</sup>with y axis, its horizontal component is. |
- A. 50 N
- B. 60 N
- C. 70.7 N
- D. 86.6 N
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| 3 |
Two tuning forks of frequencies 240 Hz and 243 Hz are sounded together, the number of beats per second is. |
|
| 4 |
The molecules of an ideal gas exert |
- A. Force on each other
- B. No force on each other
- C. Large force on each other
- D. Pressure on each other
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| 5 |
Multimode graded index fibre has a core whose diameter range lie from. |
- A. 5 to 50 micro meter
- B. 50 to 100 micro meter
- C. 40 to 1000 micro meter
- D. 50 to 10,000 micrometer
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| 6 |
A layer over the central core of the jacke is called. |
- A. Jacket
- B. Plastic
- C. Cladding
- D. Rubber
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| 7 |
Increase in the velocity of sound in air for 1 <sup>o</sup>C rise in temperature is. |
- A. 61 ms-1
- B. 0.61 ms-1
- C. 161 ms-1
- D. 261 ms-1
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| 8 |
The internal energy of system does not depend on |
- A. Temperature
- B. Pressure
- C. Path
- D. Final and initial state
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| 9 |
Which remains constant in an adiabatic process. |
- A. Volume
- B. Pressure
- C. entropy
- D. temperature
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| 10 |
Sound travel faster in |
|