A train is approaching towards a platform with a speed of 
while blowing a whistle of frequency 
. What is the frequency of whistle heard by a stationary observer on the platform? Given speed of sound 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Here, Speed of train, 
Speed of sound, 
Frequency of whistle, 
The frequency of whistle heard by the stationary observer on the platform is
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