Light of wavelength 600 nm is incident normally on a plane diffraction grating G. Using a spectrometer telescope, first order maxima are observed at A and B at angles of 86.67° and 116.67°. (N.B. 60' = 1°)
Light of wavelength 600 nm is incident normally on a plane diffraction grating G. Using a spectrometer telescope, first order maxima are observed at A and B at angles of 86.67° and 116.67°. (N.B. 60' = 1°)
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Help me understand this A level Diffraction question I got wrong. Already know the correct answers a) 430 lines mm-1 & b) 7 -- however I would appreciate an expert to show step-by-step how to get there so I learn the relevant equation and methods. Thank you
![2.
Light of wavelength 600 nm is incident normally on a plane diffraction grating G. Using a
spectrometer telescope, first order maxima are observed at A and B at angles of 86.67º and
116.67º. (N.B. 60' = 1°)
Jake
86°40'
B
116°40'
Calculate
a) the number of lines per mm of the grating
b) the number of diffraction maxima seen (including the zero order)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F273fa61a-9ae9-4a0d-a9cb-91fa6d5ee14f%2Fb0d1a09b-51e8-4c0a-bbd2-dc87016a254b%2Fbstxfmx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2.
Light of wavelength 600 nm is incident normally on a plane diffraction grating G. Using a
spectrometer telescope, first order maxima are observed at A and B at angles of 86.67º and
116.67º. (N.B. 60' = 1°)
Jake
86°40'
B
116°40'
Calculate
a) the number of lines per mm of the grating
b) the number of diffraction maxima seen (including the zero order)
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