Class VIII

The voice box is called:
  1. Stomach
  2. Heart
  3. Larynx
  4. Mouth
In dholak sound is produced due to ...
  1. stretched membrane
  2. stretched strings
  3. air column
  4. vibration of air
The sound above ___ is physically painful
  1. 20 dB
  2. 40 dB
  3. 60 dB
  4. 80 dB
The time taken to complete ___ oscillation(s) is called time period.
  1. one
  2. ten
  3. two
  4. hundred
The pitch of sound depends on the __________ of the vibrating body
  1. amplitude
  2. noise
  3. frequency
  4. medium of propagation
Time Elapsed

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