Subject Experts Solutions for Chapter: Sound, Exercise 4: Think and answer

Author:Subject Experts

Subject Experts Physics Solutions for Exercise - Subject Experts Solutions for Chapter: Sound, Exercise 4: Think and answer

Attempt the practice questions on Chapter 7: Sound, Exercise 4: Think and answer with hints and solutions to strengthen your understanding. Living Science Physics 8 solutions are prepared by Experienced Embibe Experts.

Questions from Subject Experts Solutions for Chapter: Sound, Exercise 4: Think and answer with Hints & Solutions

HARD
8th ICSE
IMPORTANT

If a key of a piano is first struck gently and then much harder, how will the loudness and pitch of the sound change?

MEDIUM
8th ICSE
IMPORTANT

A person hears two sounds one of 60 dB, 100 Hz and other of 45 dB, 700 Hz. Which sound will the person perceive to be louder?

MEDIUM
8th ICSE
IMPORTANT

If a stretched string is cut into half, how will the pitch of the sound produced by the vibrating string change?

MEDIUM
8th ICSE
IMPORTANT

Why is it advised not to use earphones at loud volumes?

MEDIUM
8th ICSE
IMPORTANT

The loudness of a sound depends on its amplitude. Give reason.

MEDIUM
8th ICSE
IMPORTANT

No two musical instruments can have the same timbre. Give reason.

MEDIUM
8th ICSE
IMPORTANT

A monotone is unable to deliver the message imparted by the orator. Give reason?