Sounds from two identical sources 
and 
reach a point 
. When the sounds reach directly, and in the same phase, the intensity at 
is 
. The power of 
is now reduced by 
, and the phase difference between 
and 
is varied continuously. The maximum and minimum intensities recorded at 
are now 
and 
-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION
(a, c)
Let 
initial amplitude due to 
and 
each.
, where k is a constant.
After reduction of power of 
, amplitude due to 
a.
Due to superposition,
, and
.
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