MEDIUM
9th CBSE
IMPORTANT
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How does a sound wave propagate?

Important Questions on Sound
MEDIUM
9th CBSE
IMPORTANT
What are the crests and troughs in a transverse wave? How is a transverse wave described graphically?

MEDIUM
9th CBSE
IMPORTANT
Derive mathematical equation describing the relationship between wave velocity, wavelength and frequency.

MEDIUM
9th CBSE
IMPORTANT
What is an echo? How is it produced? What should be the minimum distance(in air, at )between the observer and the obstacle for an echo to be heard clearly?(The speed of sound at )

MEDIUM
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT


EASY
9th CBSE
IMPORTANT
