Two beams of light of intensities 'I' and '4I' produce interference pattern on a screen. The phase difference between the beams is π/2 at a point 'A' on the screen and 'π' at point 'B' on same screen. The difference between the resultant intensities at 'A' and 'B' is - VgyanHub

Question:

Two beams of light of intensities ‘I’ and ‘4I’ produce interference pattern on a screen. The phase difference between the beams is π/2 at a point ‘A’ on the screen and ‘π’ at point ‘B’ on same screen. The difference between the resultant intensities at ‘A’ and ‘B’ is

Options :

(a) I
(b) 4I
(c) 2I
(d 5I

Answer :

(b) 4I

Answer Steps :

step 1

step 2

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