Three waves of equal frequency having amplitudes 10 μ μ m, 4 μ μ m and 7 μ μ m arrive at a given point with successive phase difference of 
. The amplitude of the resulting wave in μ μ m is given by
Text Solution
Verified by ExpertsThe correct answer is:
C
The wave 1 and 3 reach out of phase.
Hence resultant phase difference between them is 
.
Resultant amplitude of 1 and 3 = 
= 3 
This wave has phase difference of 
with 4 
Resultant amplitude = 
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