Physics-
General
Easy

Question

One end of a 2.35m long and 2.0cm radius aluminium rod open parentheses K equals 235 W times m to the power of negative 1 end exponent K to the power of negative 1 end exponent close parentheses is held at 200C. The other end of the rod is in contact with a block of ice at its melting point. The rate in k g times s to the power of negative 1 end exponent at which ice melts is [Take latent heat of fusion for ice as open fraction numerator 10 over denominator 3 end fraction cross times 10 to the power of 5 end exponent J times k g to the power of negative 1 end exponent close square brackets

  1. 48 pi cross times 10 to the power of negative 6 end exponent    
  2. 24 pi cross times 10 to the power of negative 6 end exponent    
  3. 2.4 pi cross times 10 to the power of negative 6 end exponent    
  4. 4.8 pi cross times 10 to the power of negative 6 end exponent    

The correct answer is: 2.4 pi cross times 10 to the power of negative 6 end exponent

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