In Young's double-slit experiment, the spacing between the slits is 'd' and the wavelength of light used is 6000 Å . If the angular width of a fringe formed on a distant screen is 1 o , then calculate 'd'.

Question

In Young's double-slit experiment, the spacing between the slits is 'd' and the wavelength of light used is 6000 Å . If the angular width of a fringe formed on a distant screen is 1 o , then calculate 'd'., 1 mm, 0.05 mm, 0.03 mm, 0.01 mm

MARKS App · Accepted Answer

Angular fringe width θ 0 = β D θ 0 = β D = D λ d × 1 D = λ d θ 0 = 1 o = π 180 rad and λ = 6 × 10 - 7 m d = λ θ 0 = 180 π × 6 × 10 - 7 = 3.44 × 10 - 5 m = 0.03 m m

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