JEE (Advanced) 2017 Paper-1 Question 3

Question 3

A block M hangs vertically at the bottom end of a uniform rope of constant mass per unit length. The top end of the rope is attached to a fixed rigid support at O. A transverse wave pulse (Pulse 1) of wavelength $$\lambda_0$$ is produced at point O on the rope. The pulse takes time $$T_{OA}$$ to reach point A. If the wave pulse of wavelength $$\lambda_0$$ is produced at point A (Pulse 2) without disturbing the position of M it takes time $$T_{OA}$$ to reach point O. Which of the following options is/are correct?



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