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KEAM 2021 Physics and Chemistry Solved Paper
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© examsnet.com
Question : 1
Total: 120
When two sound waves of slightly different frequencies
f
1
and
f
2
are sounded together, then the time interval between successive maxima is
1
f
1
+
f
2
1
f
1
+
1
f
2
1
f
1
−
f
2
1
f
1
f
2
1
f
1
−
1
f
2
Validate
Solution:
When two sound waves of slightly different frequencies
f
1
and
f
2
are sounded together, they superimpose at a given point, which give beats. The time interval between the successive maxima is expressed as
T
=
1
f
1
−
f
2
© examsnet.com
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