Question

Two sources of intensities 100: 1 interfere with each other . Deduce the ratios of intensities between maximum and minimum in the interference medium.​

Answer 1

Answer:

Correct option is

A

4 : 1

Let the intensity of the two waves be I

1

and I

2

Given: I

2

:I

1

=9:1⟹I

2

=9I

1

Now

I

min

I

max

=

(

I

2

−

I

1

)

2

(

I

1

+

I

2

)

2

=

(

9I

1

−

I

1

)

2

(

I

1

+

9I

1

)

2

=

4I

1

16I

1