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Fig, here shows P and Q as two equally i...

Fig, here shows P and Q as two equally intense coherent sources emitting radiations of wavelength 20m. The separation PQ si 5m, and phase of P is ahead of the phase Q by `90^(@)`. A, B and C are three distant points of observation equidistant from the mid - point of PQ. The intensity of radiations of A, B, C will be in the ratio

A

`0:1:4`

B

`4:1:0`

C

`0:1:2`

D

`2:1:0`

Text Solution

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The correct Answer is:
C
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DISHA PUBLICATION-WAVE OPTICS-EXERCISE-2 : CONCEPT APPLICATOR
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