Laser light of wavelength 630 nm incident on a pair of slits produces an interference pattern in which the bright - Physics -

Question

Laser light of wavelength 630 nm incident on a pair of slits
produces an interference pattern in which the bright fringes are
separated by 7 2 mm Calculate the wavelength of another source of
laser light which produce interference fringes separated by 8 1 mm
using same pair Of slits

Chaitanya Pradhan · Answer

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Laser light of wavelength 630 nm incident on a pair of slits produces an interference pattern in which the bright fringes are separated by 7.2 mm. Calculate the wavelength of another source of laser light which produce interference fringes separated by 8.1 mm using same pair Of slits.