Question

18. A screen is placed at a distance from two images of an
illuminated slit. Distances of a point on the screen from the two
images differ by 185.5 wavelengths. Is the point bright or dark?
If the path difference is 8.347 x 10 cm, calculate the wavelength
of light used.
(4500 A)​

Answer 1

Answer:

images differ by 185.5 wavelengths. Is the point bright or dark? If the path difference is 8.347 x 10 cm, calculate the ...