Question
In the above problem, the radiation force on the mirror will be(A) $6.4 \times 10^{-7} \mathrm{~N}$(B) $4.8 \times 10^{-8} \mathrm{~N}$(C) $3.2 \times 10^{-9} \mathrm{~N}$(D) $1.6 \times 10^{-10} \mathrm{~N}$
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A plane EM wave of wave intensity $10 \mathrm{~W} / \mathrm{m}^{2}$ strikes a small mirror of area $20 \mathrm{~cm}^{2}$, held perpendicular to the approaching wave. The radiation force on the mirror will be (a) $6.6 \times 10^{-11} \mathrm{~N}$ (b) $1.33 \times 10^{-11} \mathrm{~N}$ (c) $1.33 \times 10^{-10} \mathrm{~N}$ (d) $6.6 \times 10^{-10} \mathrm{~N}$
A plane electromagnetic wave of wave intensity $10 \mathrm{~cm}^{-2}$ strikes a small mirror of area $20 \mathrm{~cm}^{2}$, held perpendicular to the approaching wave. The radiation force on the mirror will be (A) $6.6 \times 10^{-11} \mathrm{~N}$ (B) $1.33 \times 10^{-11} \mathrm{~N}$ (C) $1.33 \times 10^{-10} \mathrm{~N}$ (D) $6.6 \times 10^{-10} \mathrm{~N}$
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