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Physics-

General

Easy

Question

Light with energy flux $36 W m to the power of negative 2 end exponent$ is incident on a circular part of radius 1.4 m of a perfectly black body. The force experienced by the body and the momentum delivered in 10 minutes are

$2.2 μ N; 7.2 μ {k g m s}^{- 1}$
$3.5 μ N; 7.4 μ {k g m s}^{- 1}$
$0.74 μ N; 444 μ {k g m s}^{- 1}$
$7.4 μ N; 2.2 μ {k g m s}^{- 1}$

The correct answer is: $0.74 mu N semicolon 444 mu k g m s to the power of negative 1 end exponent$

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