A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance from each other. The source is moving with a speed of 
at an angle of 
with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer (velocity of sound in air is 
is
Text Solution
Verified by ExpertsThe correct answer is:
B
Here, original frequency of sound, 
Speed of source 
From Doppler's formula
Apparent frequency 
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