A Laser light is passed through a grating having 300 lines/mm and diffraction pattern is observed...

A Laser light is passed through a grating having 300 lines/mm and diffraction pattern is observed at 51.5 cm, 53.5cm and 55.5cm respectively. The diffraction pattern having separation of 103mm,107mm and 111mm between the maximum and minimum interference correspondingly. Calculate the wavelength of laser? Also calculate the percentage error if the actual wavelength of laser is 660nm.

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genius_generous answered 1 year ago

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