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A beam of light of intensity 12 watt/cm^2 is incident on a totally reflecting plane mirror of area 1.5 cm^2 , then the

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 A beam of light of intensity 12 watt/cm2 is incident on a totally reflecting plane mirror of area 1.5 cm2 , then the force (in newton) acting on the mirror will be

(a)  2.4 × 10–6

(b)  1.2 × 10–7

(c)  3.6 × 10–8

(d)  5.6 × 10–5

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1 Answer

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Best answer

Correct option  (b) 1.2 × 10–7

Explanation:

 Pressure of light on totally reflecting surface

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