Physics-
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Question

A plane electromagnetic wave of wave intensity 6W/m2 stikes a small mirror of area 40cm2 , held perpendicular to the approaching wave. The momentum transferred by the wave to the mirror each second will be

  1. 6.4 cross times 10 to the power of negative 7 end exponent k g minus m divided by s    
  2. 4.8 cross times 10 to the power of negative 8 end exponent k g minus m divided by s    
  3. 3.2 cross times 10 to the power of negative 9 end exponent k g minus m divided by s    
  4. 1.6 cross times 10 to the power of negative 10 end exponent k g minus m divided by s    

The correct answer is: 1.6 cross times 10 to the power of negative 10 end exponent k g minus m divided by s

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