Answer:
angular separation = 0.04981868 deg
Explanation:
Given data
wavelength λ = 519 nm
bright fringes y = 4.0 mm
interference D = 4.6 m
to find out
angular separation
solution
we will find angular seperation between central maximum and the first order maximum that is
angular separation = bright fringes / interference
put here all value
angular separation = 8.695 × 10^(-4) rad
angular separation = 0.04981868 deg