Can the spectral properties of a light source be predicted from the first-order diffraction patterns
detineerlf
Answered question
2022-07-20
Answer & Explanation
Wayne Everett
Beginner2022-07-21Added 19 answers
Yes,
The principal maxima in a grating satisfy the following condition,
Where,
(e+d) is the grating element
n is the order of the maxima
is the wavelength of the incident light
The maximum angle of diffraction is hence the maximum possible order is given as follows,
Here on considering a grating which is having element which is less than twice the wavelength of the incident light then
Therefore,
That is only the first order is possible
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