Question

when two coherent waves interfere the minimum and maximum intensities are in the ratio 16:25 then​

Answer 1

Answer:

a b D are correct

Explanation:

Thanks for Reading

Answer 2

Answer:

Explanation:

If maximum and minimum intensities are in ratio  

16

25

​  

 

Then amplitudes are in ratio  

4

5

​  

 as amplitude is proportional to the square root of Intensity.

Let individual waves be a  

1

​  

 and a  

2

​  

 

Then  

a  

1

​  

−a  

2

​  

 

a  

1

​  

+a  

2

​  

 

​  

=  

4

5

​  

 

We get a  

1

​  

:a  

2

​  

=9:1

Intensities are proportional to the square of amplitude.

Ratio of Intensities I  

1

​  

:I  

2

​  

=81:1