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Light with energy flux 18 w c m to the power of negative 2 end exponent is incident on a mirror of size 2cm´2cm normally. The force experienced by it and momentum delivered in one minute are

  1. 0.48 mu N semicolon 28.8 mu k g m s to the power of negative 1 end exponent    
  2. 48 mu N semicolon 2.88 mu k g m s to the power of negative 1 end exponent    
  3. 28.8 mu N semicolon 4.8 mu k g m s to the power of negative 1 end exponent    
  4. 0.24 mu N semicolon 28.8 mu k g m s to the power of negative 1 end exponent    

The correct answer is: 0.48 mu N semicolon 28.8 mu k g m s to the power of negative 1 end exponent

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