Problem 6: Light is incident normally on a grating which has 250 lines/mm. Find the wavelength of the spectral line for which the deviation in second order is 12o.

Solution

Given Data

No of lines = 250/mm = 250000/m, Order of deviation = m = 2

Separation between lines = d = 1/250000, Angle of deviation = θ = 12^{o}

Pingback:Numerical Problem, Physical Optics … msa – msa

Pingback:Numerical Problem 5, Physical Optics … msa – msa

Pingback:Numerical Problems, Physical Optics, … msa – msa

Pingback:Numerical problems on Physical Optics, Physics 11 – msa