1. Velocity of sound in air does not depend on
2. When sound waves are propagated through a medium, the physical quantity/quantities transmitted is/are
3. In longitudinal waves, particles vibrate in the . . . . . . . . direction of transmission the propagation of the wave.
4. In simple harmonic motion, acceleration is at
5. The period of a simple pendulum is doubled, when
6. Which of the following can be measured with the help of SONAR?
7. Which one of the following frequency range is sensitive to human ears?
8. Consider the following statements.
1. A widely used musical scale called diatomic scale has seven frequencies.
2. The frequency of the tone Sa is 256 Hz and that of Ni is 512 Hz.
Which of the statements given above is/are correct?
1. A widely used musical scale called diatomic scale has seven frequencies.
2. The frequency of the tone Sa is 256 Hz and that of Ni is 512 Hz.
Which of the statements given above is/are correct?
9. Which of the following statement(s) about electromagnetic waves, sound waves and water waves is/are correct?
1. They exhibit reflection.
2. They carry energy.
3. They exert pressure.
4. They can travel in vacuum.
1. They exhibit reflection.
2. They carry energy.
3. They exert pressure.
4. They can travel in vacuum.
10. Decibel is used to measure
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