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In the above question the radiation force on the mirror will be

  1. 6.4 cross times 10 to the power of negative 7 end exponent N    
  2. 4.8 cross times 10 to the power of negative 8 end exponent N    
  3. 3.2 cross times 10 to the power of negative 9 end exponent N    
  4. 1.6 cross times 10 to the power of negative 10 end exponentN    

The correct answer is: 1.6 cross times 10 to the power of negative 10 end exponentN

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