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Standard IX
Physics
Characteristics of Sound Waves
What is frequ...
Question
What is frequency of whistle heared by a man running towards engine with speed 10m/s?
The true frequency of the whistle is 400Hz.and speed of sound is 340m/s.
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Solution
Dear Student,
this is the question of doppler effect.
a
p
p
a
r
e
n
t
f
r
e
q
u
e
n
c
y
f
'
=
f
V
+
10
V
=
400
350
340
=
411
.
76
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