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Question

A screen is placed 53 cm from a single slit which is illuminated with 632 nm light. If the distance from the

central maximum to the first minimum of the diffraction pattern is 2.6 mm, how wide is the slit in micrometer?

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The slit width... View the full answer

20191211_210557.jpg

For destructive interFerence- (ie. For minimum)-
X = ( 201 -1 ) 20
2d
Here, n= 1 ( since minimal is ist )
X1 = (2X1 -1 ) XD = JD
2 d
2d
X1 = (63 2x10- m) x (53 x10- 2 m)
2xd
Where, D is the screen...

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