| 1 |
When the amplitude of a wave is increase to doubled is energy. |
- A. Remain the same
- B. Increases 4 times
- C. Increases by two times
- D. Decreases by half
|
| 2 |
Which phenomenon of light proves that light waves are transverse in nature. |
- A. Refraction
- B. Reflection
- C. Diffraction
- D. Polarization
|
| 3 |
The mean kinetic energy of gas is at. |
- A. 0 <sup>o</sup>C
- B. -273 <sup>o</sup>C
- C. 100 K
- D. 100 <sup>o</sup>C
|
| 4 |
The dimensions of work are |
- A. MLT<sup>-1</sup>
- B. MLT<sup>-2</sup>
- C. ML<sup>2</sup>T<sup>-2</sup>
- D. ML<sup>-1</sup>T<sup>-1</sup>
|
| 5 |
A man of 1 kg is freefalling. The force of gravity is |
- A. 1 N
- B. 9.8 N
- C. 0.5 N
- D. Zero
|
| 6 |
Before the launch of a rocket the mass of fuel of the rocket is approximately consists of. |
- A. 60%
- B. 50%
- C. 80%
- D. 100%
|
| 7 |
If the object is at 5 cm from the lens of simple microscope than its magnifying power will be. |
|
| 8 |
When distance is plotted against the force, it is taken along |
- A. x-axis
- B. y-axis
- C. z-axis
- D. None of these
|
| 9 |
Frequency 'f' and time period 'T' are related as |
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| 10 |
Food rich in proteins is: |
- A. potato
- B. grapes
- C. vegetables
- D. bread
|