Question

Interference pattern is obtained with two coherent light source of intensity and 4i the intensity at a meet at a point where phase difference is 5 by 2 is

Answer 1

Answer:

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Answer 2

Explanation:

Given : I

2

=nI

1

Maximum intensity of interference I

max

=(

I

1

+

I

2

)

2

∴ I

max

=(

I

1

+

nI

1

)

2

=(1+

n

)

2

I

1

=(1+n+2

n

)I

1

Minimum intensity of interference I

min

=(

I

1

−

I

2

)

2

∴ I

min

=(

I

1

−

nI

1

)

2

=(1−

n

)

2

I

1

=(1+n−2

n

)I

1

∴

I

max

+I

min

I

max

−I

min

=

2(1+n)

2

n

−(−2

n

)

=

1+n

2

n