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Light of wavelength 560 nm goes through a pinhole of diameter 0.20 mm and falls on a wall at a distance of 2.00 m.

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asked Mar 31, 2018 in Physics by Nisa (2,540 points) ● 1 ● 3

Light of wavelength 560 nm goes through a pinhole of diameter 0.20 mm and falls on a wall at a distance of 2.00 m. What will be the radius of the central bright spot formed on the wall ?

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answered Mar 31, 2018 by rubby (7,550 points) ● 1 ● 3 ● 5
selected Apr 1, 2018 by Vikash Kumar
 
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So, Diameter = 2R = 1.37 cm.

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