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The pressure exerted by an electromagnetic wave of intensity $I$ on a non-reflecting surface is ($c$ is velocity of light)

$\begin {array} {1 1} (a)\;Ic & \quad (b)\;Ic^2 \\ (c)\;I/c & \quad (d)\;I/c^2 \end {array}$

Can you answer this question?

Ans : (c)
$I/c$
answered Feb 26, 2014