What is reverberation?

Important Questions on Sound

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 10

What is Ultrasound?

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 11

Write the full form of SONAR.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 12

Name the disease that can be caused by UV rays.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 13

If $20$ waves are produced per second, what is the frequency in Hertz?

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 1

Give classification of waves on the basis of movement of particles.

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 2

What are the important properties of a medium required for propagation of sound wave?

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 3

Give two examples in which a vibrating object produces sound.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 6 - Sound>Summative Assessment>Q 4

What is a Stethoscope? How does it work?