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BITSAT Physics Laws of Motion 2022 BITSAT 2022

BITSAT Physics Question (2022) — Solution

Question

In the diagram shown below, both the strings A B and C D are made of same material and have same cross-section. The pulleys are light and fictionless. If the speed of wave in string A B is v_1 and in C D is v_2, then v_1 v_2 is

Options

  1. A. 1
  2. B. 2
  3. C. 2
  4. D. 1 / 2

Answer

D. 1 / 2

Step-by-step solution

Let the speed of wave in string be v and tension in string be T. gathered v T \\ v_ A B v_ C D = T 2 T = 1 2 gathered

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Related: Physics — Laws of Motion · All PYQ Banks