Question

II. Fill in the blanks.
1. Sound is a
wave and needs a
material medium to travel.
2. Number of vibrations produced in one second
3. The velocity of sound in solid is.
than the velocity of sound in air.
4. Vibration of object produces
Sound
10​

Answer 1

1)sound is a vibrating wave and needs a solid material medium to travel.

2) number of vibration produced in one second is called

Answer 2

Answer:

1:-sound is a longitudinal wave and needs a material medium to travel.

2:-Number of vibration produced in one second are called frequency.

3:- The velocityof sound in solid is more than the velocity of sound in air.

4:- vibration of objects produce sound waves

Explanation:

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