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NEET2018PhysicsThermal Properties of MatterActual

How much should the temperature of a brass rod be increased so as to increase its length by 1 % ? (Given, for brass is 0.00002^ C ⁻¹ ).

Options

  1. A300^ C
  2. B400^ C
  3. C500^ C
  4. D550^ C

Correct answer

C. 500^ C

Step-by-step solution

Here, T = ?, L L = 1 100 =0.00002^ C ⁻¹ As L = L T T = L L or T = L L = 1 100 0.00002 T = 10^5 2 10^2 =500^ C

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