Question

Two narrow slits in young's double slit experiment and 0.18 metre apart when they are illuminated by monochromatic lady fingers of feet 2.7 millimetre are obtained on a screen 0.8 metre find the wavelength of light used if the source is replaced by another source of wavelength 450 NM find the change in the fringe width

Answer 1

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Answer 2

Answer:

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