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The maximum intensity in the interferenc...

The maximum intensity in the interference pattern of two equal and parallel slits is I. If one of the slits is closed the intensity at the same point is `1_(0)`. Then ______.

A

`1=1_(0)`

B

1=`21_(0)`

C

1`= 4_(0)`

D

There is no relation between 1 and `1_(0)`

Text Solution

Verified by Experts

The correct Answer is:
C
`I_("max")=(a+a)^(2)`
when one slit is closed, intensity at the same point is
`I'=a^(2)=I_(0)`
`:." "I=4I_(0)`
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