MEDIUM
11th ICSE
IMPORTANT
Earn 100

An engine is approaching a railway station at speed while sounding a whistle of frequency. What will be the frequency of the whistle as heard by an observer standing on the platform? Speed of sound is .

Important Questions on Doppler Effect
MEDIUM
11th ICSE
IMPORTANT
A source of sound is approaching a stationary listener with a speed of . The listener hears a sound whose apparent frequency is twice the real frequency. Find the speed of sound waves.

MEDIUM
11th ICSE
IMPORTANT

MEDIUM
11th ICSE
IMPORTANT

HARD
11th ICSE
IMPORTANT

HARD
11th ICSE
IMPORTANT

MEDIUM
11th ICSE
IMPORTANT

HARD
11th ICSE
IMPORTANT

HARD
11th ICSE
IMPORTANT
