Ncert Exercises & Solutions

The figure shows a standard two-slit arrangement with slits \(S_1, S_2. P_1, P_2\) are the two minima points on either side of \(P\) as shown in the figure.

At \(P_2\) on the screen, there is a hole and behind \(P_2\) is a second \(2\text-\)slit arrangement with slits \(S_3, S_4\) and a second screen behind them.

1.	There would be no interference pattern on the second screen but it would be lighted.
2.	The second screen would be totally dark.
3.	There would be a single bright point on the second screen.
4.	There would be a regular two-slit pattern on the second screen.

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