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General
Easy
Question
In a Young's Double slit experiment, first maxima is observed at a fixed point P on the screen. Now the screen is continuously moved away from the plane of slits. The ratio of intensity at point P to the intensity at point O (centre of the screen)
- remains constant
- keeps on decreasing
- first decreases and then increases
- First decreases and then becomes constant
The correct answer is: first decreases and then increases
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