MEDIUM
8th CBSE
IMPORTANT
Earn 100

What are the ill effects of noise pollution?

Important Questions on Sound

MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 8
Sound can travel in vacuum also.
EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 8
Sound is produced when objects vibrate.
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 8
The unit of frequency is hertz.
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 13 - Sound>TEST ASSIGNMENT NO. 2>Q 9
Write the applications of ultrasound in our life.