Physics-
General
Easy

Question

The ratio of length radii and young’s modulus of steel and brass wires are a, b, c respectively. Then the corresponding ratio of increases in their length in the situation shown in figure would be

  1. fraction numerator 2 a to the power of 2 end exponent c over denominator b end fraction    
  2. fraction numerator 3 a over denominator 2 text end text b to the power of 2 end exponent c end fraction    
  3. fraction numerator 2 a c over denominator b to the power of 2 end exponent end fraction    
  4. fraction numerator 3 c over denominator 2 a b to the power of 2 end exponent end fraction    

The correct answer is: fraction numerator 3 a over denominator 2 text end text b to the power of 2 end exponent c end fraction

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