Question

What is the ' frequency ' of a vibrating object ? How is it related to shrillness of sound ?​

Answer 1

Explanation:

The unit of frequency of vibration or oscillation of a vibrating object is hertz. When an object makes one vibration per second its frequency is said to be 1 hertz. If an object makes 10 vibrations per second , then its frequency will be 10 hertz.

Sound is produced by rapid to-and-fro movements, called vibrations or oscillations. The number of oscillations per second is called frequency of oscillating body. The SI unit of frequency is hertz (Hz). The higher the frequency, the more shrill is the sound.