Question

What will you observe when a flat metal plate is vibrated?

• A. It produces sound
• B. It does not produce any sound.
• C. It moves about its axis
• D. It moves in a straight line

Answer 1

The correct option is A

It produces sound

A sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate. So, when a flat metal plate is vibrated it produces sound.

To and fro motion of a body about a mean position is known as oscillations. Fast oscillations are known as vibrations.