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Waves question

2022 · Q135
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Waves question

2022 · Q135

NEETPhysicsWavesMCQ+4 / −1

If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is

  1. A
    1 : 1
  2. B
    2\sqrt22​ : 1
  3. C
    1 : 2\sqrt22​
  4. D
    1 : 2
View written solutionFree

Correct answer: C

We know, velocity of transverse wave

$$v = \sqrt {{T \over \mu }} $$

$\therefore$ $${v_i} = \sqrt {{T \over \mu }} $$ and $${v_f} = \sqrt {{{2T} \over \mu }} $$

$\therefore$ $${{{v_i}} \over {{v_f}}} = {1 \over {\sqrt 2 }}$$

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