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In Young's double slit experiment 62 fri...

In Young's double slit experiment 62 fringes are visible in the field of view with sodium light `(lambda = 5893 Å)`. If green light `(lambda = 5461 Å)` is used then the number of visible fringes will be –

A

`62`

B

`67`

C

`85`

D

`55`

Text Solution

Verified by Experts

The correct Answer is:
B
`n_(1)lambda_(1)=n_(2)lambda_(2)` or `n_(2)=(n_(1)lambda_(1))/(lambda_(2))=(62xx5893)/(5461)` or `n_(2)=67`
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