MEDIUM
3rd CBSE
IMPORTANT
Earn 100

Tina is playing music on the radio. Myra who is studying in the other room is getting disturbed. Can you say why? (Music is otherwise pleasant sound)

Important Questions on Light and Sound

EASY
3rd CBSE
IMPORTANT
Name two natural sources of light.
EASY
3rd CBSE
IMPORTANT
Name two man-made sources of light.       
EASY
3rd CBSE
IMPORTANT

Name something that is formed when an object blocks light.

EASY
3rd CBSE
IMPORTANT
Name the object that does not let any light pass through it.
EASY
3rd CBSE
IMPORTANT

Select the right word: (vacuum, hole)

Name the completely empty space that lacks even air.

EASY
3rd CBSE
IMPORTANT

Choose the right word:

This tells us how high or low a sound is. (Noise/Pitch/Sound/Pollution)

EASY
3rd CBSE
IMPORTANT

Name the following:

It tells us how loud or soft a sound is.

EASY
3rd CBSE
IMPORTANT
Loud and unpleasant sound is named as _____.