Home
Class 9
PHYSICS
The sounds of frequency less than 20 Hz ...

The sounds of frequency less than 20 Hz are known as

A

Ultra sounds

B

Soft sounds

C

Louder sounds

D

Infrasonics

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SOUND

    NCERT BANGLISH|Exercise Let us Improve our learning (Suggested Projects)|1 Videos

  • SOUND

    NCERT BANGLISH|Exercise Let us Improve our learning (Higher Order Thinking Questions)|2 Videos

  • REFRACTION OF LIGHT AT PLANE SURFACES

    NCERT BANGLISH|Exercise THINK AND DISCUSS|2 Videos

  • WHAT IS INSIDE THE ATOM ?

    NCERT BANGLISH|Exercise THINK AND DISCUSS|1 Videos

Similar Questions

Explore conceptually related problems

Name the wave whose frequency is less than 20 Hz.

What will be the beat frequency when two tuning forks of frequencies 256 Hz and 260 hz are vibrated simultaneously ?

A sound wave of frequency 80 Hz gets reflected noumally from a large wall. Estimate the distance of the first node and the first antinode from the wall. Given , velocity of sound in air = 320 m * s^(-1) .