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The maximum number of possible interfere...

The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young's double-slit experiment is

A

infinite

B

five

C

three

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
`d sin theta=nlambda`
`2lambda sin theta=nlambda`
`sin theta=n//2`
`sin theta le 1`
`n/2le1 implies nle2 implies n_(max)=2`
`n=0, 1, 2`, Maximum number of possible maxima `=5`
`n=0, +-1, +-2`
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