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Physics
Which one of the following statements is correct?
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Q. Which one of the following statements is correct?
KEAM
KEAM 2012
Wave Optics
A
Monochromatic light is never coherent
2%
B
Monochromatic light is always coherent
10%
C
Two independent monochromatic sources are coherent
30%
D
Coherent light is sometimes monochromatic
16%
E
Coherent light is always monochromatic
16%
Solution:
The two sources of same frequency which emits waves with phase difference not changing with time, are called the coherent sources.
Two independent light sources are never coherent. Coherent light is always monochromatic.