| 1 |
<p class="MsoNormal">If the mass of bob of a simple pendulum is doubled, its time
period:<o:p></o:p></p> |
- A. <p class="MsoNormal">Is doubled<o:p></o:p></p>
- B. <p class="MsoNormal">Becomes four times<o:p></o:p></p>
- C. <p class="MsoNormal">Remains same<o:p></o:p></p>
- D. <p class="MsoNormal">Becomes half<o:p></o:p></p>
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| 2 |
High pitch means: |
- A. High wavelength
- B. High frequency
- C. High time period
- D. High energy
|
| 3 |
<p class="MsoNormal">The product of frequency and time period is equal to:<o:p></o:p></p> |
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| 4 |
<p class="MsoNormal">The waves in which particles of the medium vibrate parallel
to the direction of waves are called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Longitudinal waves<o:p></o:p></p>
- B. <p class="MsoNormal">Transverse waves<o:p></o:p></p>
- C. <p class="MsoNormal">Electromagnetic waves<o:p></o:p></p>
- D. <p class="MsoNormal">Both a and c<o:p></o:p></p>
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| 5 |
<p class="MsoNormal">the motion in which the friction reduces the mechanical
energy of the system as time passes and the amplitude of motion reduces is
called:<o:p></o:p></p> |
- A. <p class="MsoNormal">SHM<o:p></o:p></p>
- B. <p class="MsoNormal">Random motion<o:p></o:p></p>
- C. <p class="MsoNormal">Damped motion<o:p></o:p></p>
- D. <p class="MsoNormal">Circulatory motion<o:p></o:p></p>
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| 6 |
For normal person audible frequency range for sound wave lies between. |
- A. 10 Hz and 10KHz
- B. 20 Hz and 20KHz
- C. 25 Hz and 25KHz
- D. 30 Hz and 30KHz
|
| 7 |
<p class="MsoNormal">The value of acceleration is simple harmonic motion at mean
position is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Maximum<o:p></o:p></p>
- B. <p class="MsoNormal">Zero<o:p></o:p></p>
- C. <p class="MsoNormal">10 N<o:p></o:p></p>
- D. <p class="MsoNormal">Both a and b<o:p></o:p></p>
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| 8 |
<p class="MsoNormal">The displacement produced in the spring is directly
proportional to force is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Hook’s law<o:p></o:p></p>
- B. <p class="MsoNormal">Boyle’s law<o:p></o:p></p>
- C. <p class="MsoNormal">Newton’s law<o:p></o:p></p>
- D. <p class="MsoNormal">Joule’s law<o:p></o:p></p>
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| 9 |
<p class="MsoNormal">In simple harmonic motion, the acceleration of the body
is…………. Proportional to the displacement.<o:p></o:p></p> |
- A. <p class="MsoNormal">Inversely<o:p></o:p></p>
- B. <p class="MsoNormal">Directly<o:p></o:p></p>
- C. <p class="MsoNormal">Equally<o:p></o:p></p>
- D. <p class="MsoNormal">Ration<o:p></o:p></p>
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| 10 |
The S.I unit of intensity of sound is: |
- A. Wm
- B. Wm2
- C. Wm-2
- D. Wm-1
|