Two slits are made on millimeter apart and the screen is placed one metre away. What is the fringe separation when blue-green light of wavelength 500 nm is used?

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(b) 0.5 mm — Given that 10-3m d = 1mm = D = 1m λ = 500 nm 10-9m = 500 × As we have, β = ? Therefore, fringe separation is given by λD 500×10−9×1 β = = d 10−3 = 0.5mm

Answer

(A) 0.5 m

Answer

(C) 50 mm

Answer

(D) 50 m

Two slits are made on millimeter apart and the screen is placed one metre away. What is the fringe separation when blue-green light of wavelength 500 nm is used?

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