, , and and The time T AO = T OA

, will get -2 marks, as a wrong option is also darkened. 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 is produced at point O on the rope. The pulse takes time toa to reach point A. If the wave pulse of wavelength is produced at point A (Pulse 2) without disturbing the position of M it takes time T AO to reach point O. Which of the following options is/are correct? The velocities of the two pulses (Pulse 1 and Pulse 2) are the same at the midpoint of rope.

and and The wavelength of Pulse 1 becomes longer when it reaches point A.

. ONE OR MORE THAN ONE of these four options is(are) correct. • For each question, marks will be awarded in one of the following categories: Full Marks : +4 If only the bubble(s) corresponding to all the correct option(s) is(are) darkened. Partial Marks : + 1 For darkening a bubble corresponding to each correct option, provided NO incorrect option is darkened. Zero Marks : 0 If none of the bubbles is darkened. Negative Marks : - 2 In all other cases. • For example, if are all the correct options for a question, darkening all these three will get +4 marks; darkening only will get +2 marks; and darkening The velocity of any pulse along the rope is independent of its frequency and wavelength.