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QAIPM-2014-Ph-1408: NEET 2014 Physics - Class 12 AIPM-2014-Ph-1408 Solution: Light with an energy flux of \(25 10^4\ {W m}^{-2}\) falls on a …

Light with an energy flux of 25×104 W m−225 \times 10^4\ \text{W m}^{-2} falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm215\ \text{cm}^2 the average force exerted on the surface is 1.25×10−6 N1.25 \times 10^{-6}\ \text{N} 2.50×10−6 N2.50 \times 10^{-6}\ \text{N} 1.20×10−6 N1.20 \times 10^{-6}\ \text{N} 3.0×10−6 N3.0 \times 10^{-6}\ \text{N}

Multiple Choice Options

  • A 1.25 ×\times _ 10 −- _ 6 N
  • B 2.50 ×\times _ 10 −- _ 6 N
  • C 1.20 ×\times _ 10 −- _ 6 N
  • D 3.0 ×\times _ 10 −- _ 6 N

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