Q147 / 160 · AP EAMCET 2023 (18 May Shift 1) · Physics

In order to quadruple the resistance of a uniform wire, a part of it is uniformly stretched so that the final length of the wire becomes 1.5 times the original length. The fractional length of the stretched part is

  • A
    $\frac{1}{6}$
  • Correct answer
    B
    $\frac{1}{8}$
  • C
    $\frac{1}{4}$
  • D
    $\frac{1}{10}$

Solution

$\frac{1}{8}$

Hence, the correct answer is option: 'B'.

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