Wave motionHard
Question
The path difference between two interfering waves at a point on the screen is λ/8 The ratio of intensity at this point and that at the central fringe will be :-
Options
A.0.853
B.8.53
C.85.3
D.853
Solution
Phase difference = 
(Path difference)
ᐃφ =
I′ = I + I + 2I cos
= (2 + √2)I
I″ = ( a + a)2 = 4I
= 0·853
(Path difference)ᐃφ =
I′ = I + I + 2I cos
= (2 + √2)II″ = ( a + a)2 = 4I
= 0·853Create a free account to view solution
View Solution FreeMore Wave motion Questions
A locomotive engine is approaching a hill with speed of 30 m/s. It blows whistle of frequency 600 Hz the frequency of th...Waves that can not be polarized are...A train is moving with 30 m/s and speed of sound in air is 340 m/s. Another train is moving in opposite direction with s...About is moving with a velocity of 5 m/s towards a huge wall. The driver sounds a horn of frequency 165 Hz. If the speed...If the velocity of wave is 360 m/s and frequency is 50 Hz determine the path diference corrosponding to 60° phase diff.I...