Question

if the separation between slits in young's double slit experiment is reduced to one by third, the Fringe word becomes 9 times. the value of n is​

Answer 1

Answer: 3 times

Explanation: B=L(wavelength)D/d

d=1/3d

B'=3LD/d

B'=3B

Answer 2

Answer:

Explanation:

3

13  

9

19

Answer :

A