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In Young's double slit experiment if the...

In Young's double slit experiment if the distance between two slits is equal to the wavelength of used light. Then the maximum number of bright fringes obtained on the screen will be ......

A

Infinite

B

3

C

7

D

5

Text Solution

Verified by Experts

The correct Answer is:
B
We know
`dsintheta=pmmlamda`
but `d=lamda`
so `sin theta=pmm`
`m=pm1`
so maximum number of bright fringes = 3
Central maxima + either side of central maxima
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