Question

7. The shrillness of a sound is known as.
a) pitch
b) vibration c) Intensity
d) decibel.​

Answer 1

Answer:

option (a)pitch

Explanation:

if m not wrong

Answer 2

$\huge \underline \mathbb \green{ANSWER}$

A) Pitch

Reason - The world shrillness is used to define the pitch of the sound. A high pitched sound is called a shrill sound.

Hope helps....