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In a young double slit experiment. The two slits are illuminated by a monochromatic light source S of wavelength =500 ~nm . Distance between slits and screen is D=2 ~m and distance between two slits S₁ S₂=10 m . ₁=20 m and ₂= m , as shown in the figure. If maxima will appear on the screen is 20 K . Find the value of K .

Correct answer

2

Step-by-step solution

aligned & | | 1 & -1 2 [ n 40 -1 ] 1 aligned or 20 n 60 Hence number of maxima =60-20=40

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