A circular area of radius 10 cm is placed at a distance of 2 0 m from a point source The source emits light uniformly in all directions The line joining the source to the centre of the area is normal to the area It is found that 2 0 x 10 lumen of luminous flux is incident on the area Calculate the...

A circular area of radius 10 cm is placed at a distance of 2.0 m from...

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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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Posted Date: Mar 21, 2023 12:33 AM

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