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Grade: upto college level
        In a Young’s double slit experiment, two narrow vertical slits placed 0.800 mm apart are illuminated by the same source of yellow light of wavelength 589 nm. How far are the adjacent bright bands in the interference pattern observed on a screen 2.00 m away?
5 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
471 Points
							Sol. Given that, d = 0.8 mm = 0.8 * 10^–3 m, λ = 589 nm = 589 * 10^–9 m and D = 2 m.
So, β = Dλ/d = 589 * 10^-9/0.8 * 10^-3 = 1.47 * 10^-3 m = 147 mm.

						
5 years ago
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