wave_mechanics interference_and_superposition_of_waves Question 5
Question: If two waves of same frequency and same amplitude respectively, on superimposition produced a resultant disturbance of the same amplitude, the waves differ in phase by
[MP PMT 1990; MP PET 2000]
Options:
A) p
B) $ 2\pi /3 $
C) $ \pi /2 $
D) Zero
Show Answer
Answer:
Correct Answer: B
Solution:
$ A^{2}=a^{2}=a^{2}+a^{2}+2a^{2}\cos \theta \Rightarrow \cos \theta =-\frac{1}{2}\Rightarrow \theta =\frac{2\pi }{3} $
BETA
