1.

Figure shows a two slit arrangement withslits S_(1), S_(2), P_(1), P_(2) are the two minima ponts on either side of P(Fig). At P_(2) on the screen, there is a hole and behind P_(2) is a second 2-slit arranngement with slits S_(3), S_(4) and a second screen behind them

Answer»

There WOULD be no interference pattern on the SECOND SCREEN but it would be lighted.
The second screen would be TOTALLY dark
There would be a single bright point on the second screen.
There would be a regular TWO slit pattern on the second screen.

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