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light of wavelength 700 NM is incident on pair of slits forming fringes three apart on a screen what is difference basing when light of wavelength 350 NM is used and The Separation is doubled |
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Answer» Answer: Position of NTH bright fringe y n
= d nλD
GIVEN : λ=700 nm ∴ y 3
= d 3×700D
⟹y 3
= d 2100D
The 5th bright fringe DUE to LIGHT of wavelength λ ′ is formed at y 3
∴ y 5
=y 3
OR d 5×λ ′ D
= d 2100D
⟹ λ ′ = 5 2100
=420 nm pls mark as brainlist |
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