Figure shows a standard two slit arrangement with slits S1 S2. P1 P2 are the two minima points on either side of P (Figure). 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. [NCERT Exemplar] (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.

Figure shows a standard two slit arrangement with slits S1 S2. P1 P2 a

1.	Figure shows a standard two slit arrangement with slits S1 S2. P1 P2 are the two minima points on either side of P (Figure). 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. [NCERT Exemplar] (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.
Answer» WER should be D

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