A Parallel beam of Home Sodium light is normally incident on a grating having 4250 lines per cm and a Second order spectral line is observed at an angle of 30° The wavelength of the light is.

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A Parallel beam of Home Sodium light is
normally incident on a grating having
4250 lines per cm and a Second order
spectral line is observed at an angle of
30° The wavelength of the light is.
Transcribed Image Text:A Parallel beam of Home Sodium light is normally incident on a grating having 4250 lines per cm and a Second order spectral line is observed at an angle of 30° The wavelength of the light is.
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