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Two source S(1) and S(2) of intensity I(...

Two source `S_(1)` and `S_(2)` of intensity `I_(1)` and `I_(2)` are placed in front of a screen [Figure a]. The pattern of intensity distribution see in the central portion is given by Figure b. In this case which of the following statement are true.

A

`S_1 and S_2` have the same intensities

B

`S_1 and S_2` have a constant phase difference

C

`S_1 and S_2` have the same phase

D

`S_1 and S_2` have the same wavelength.

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
The pattern of intensity distribution shown in the given figure (b) suggests that intensity distribution in successive maxima is same. So, the two sources `S_1 and S_2` have the same wavelength.
This is sustained interference pattern. So `S_1 and S_2` have constant phase difference.
Minimum intensity is zero. So, `S_1 and S_2` have to same intensity.
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