Question

. For light of wavelength a = 6x10-7
m, it is found that in a thin film of air, 9 fringes
occur between two points. Deduce the difference
of film thickness between these points. (711619101​

Answer 1

Answer:

it is found that in a thin film of air, 9 fringes

occur between two points. Deduce the difference

of film thickness between these points