Class IX

Which characteristic is this? We can distinguish between sound having same pitch and loudness.
  1. tone
  2. note
  3. pitch
  4. timber
Speed of sound depends upon
  1. Temperature of the medium
  2. Pressure of the medium
  3. Temperature of source producing sound
  4. Temperature and pressure of medium
Loud sound can travel a larger distance, due to
  1. Higher amplitude
  2. Higher energy
  3. High frequency
  4. High speed
Reverberation of sound is used in
  1. Stethoscope
  2. Trumpets
  3. Megaphone
  4. all of above
Which part of human ear converts sound vibrations into electrical signals
  1. Hammer
  2. Stirrup
  3. Tympanic membrane
  4. Cochlea
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