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Young's modulus is determined by the equation given by Y =49000 m l dyn cm ^2 where M is the mass and l is the extension of wire used in the experiment. Now error in Young modules (Y) is estimated by taking data from M-l plot in graph paper. The smallest scale divisions are 5 ~g and 0.02 ~cm along load axis and extension axis respectively. If the value of M and l are 500 ~g and 2 ~cm respectively then percentage erro

Options

  1. A0.5 %
  2. B2 %
  3. C0.02 %
  4. D0.2 %

Correct answer

B. 2 %

Step-by-step solution

aligned Y Y & = m m + & = 5 500 + 0.02 2 =0.01+0.01 Y Y & =0.02 % Y Y =2 % aligned

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