Question

Fill in the blanks with the correct words.
1. Sound is produced by the
of particles present in objects,
(vibration/rotation)
2. With increase in pitch, the shrillness
(increases/decreases)
3. The number of oscillations per second is called
(amplitude/frequency)
4. The SI unit of frequency is
(hertz/metre)
beacjalisty​

Answer 1

Answer:

1 sound is produced by the vibration of particles present in object.

2 ) With increase in picth ,the shrillness decreases.

3) The number of oscillation per second is called frequency.

4) The si unit of frequency is hertz.