The figure shows a standard two-slit arrangement

Question:

The figure shows a standard two-slit arrangement with slits S1, S2. P1, P2 are the two minima points on either side of P. At P2 on the screen, there is a hole and behind P2 is a second 2- slit arrangement with slits S3, S4 and a second screen behind them

(a) There would be no interference pattern on the second screen but it would be lighted

(b) The second screen would be totally dark

(c) There would be a single bright point on the second screen

(d) There would be a regular two-slit pattern on the second screen

 

Solution:

The correct answer is (d) there would be a regular two-slit pattern on the second screen

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