Question 22

PHNAT1 markNeeds review
A light beam of intensity

is falling normally on a surface. The surface absorbs 20% of the intensity and the rest is reflected. The radiation pressure on the surface is given by

, where X is ________ (up to one decimal place). Here c is the speed of light.

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2018PH

GATE PH 2018 · Paper 1

Physics · Original paper archive

Section
Physics
Question type
Numerical answer (NAT)
Marks
1 mark

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