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Byju's Answer
Standard XII
Physics
Beat Frequency
Two forks A a...
Question
Two forks
A
and
B
produce 3
beats/s
. Forks
B
and
C
produce 5
beats/s
.
A
and
C
will produce
A
8
beats/s
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B
21
beats/s
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C
6
beats/s
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D
4
beats/s
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Solution
The correct option is
A
8
beats/s
As per the question we have
ν
A
−
ν
B
=
±
3
ν
B
−
ν
C
=
±
5
Adding above two we get
ν
A
−
ν
C
=
±
8
Hence,
A
and
C
will produce
8
beats/s
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