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Question : 2
Total: 4
How will the interference pattern in Young's doubleslit experiment be affected if. 3
(i) The screen is moved away from the plane of the slits.
(ii) The source slit is moved away from the plane of the slits.
(iii) The phase difference between the light waves emanating from the two slitsS 1 S 2 pi
(i) The screen is moved away from the plane of the slits.
(ii) The source slit is moved away from the plane of the slits.
(iii) The phase difference between the light waves emanating from the two slits
Solution:
Fringe width = β =
(i) As, D increases, the fringe width increases.
(ii) If the source slit is moved away from the plane of the slits, there will be no change in fringe width.
(iii) If the phase difference becomespi
I = 4 I 0 c o s 2
= 4 I 0 c o s 2
= 0
(i) As, D increases, the fringe width increases.
(ii) If the source slit is moved away from the plane of the slits, there will be no change in fringe width.
(iii) If the phase difference becomes
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