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A tall cylinder is filled with viscous o...

A tall cylinder is filled with viscous oil. A round pebble is dropped from the top with zero initial velocity. From the plot shown in figure, indicate the one that represents the velocity `(v)` of the pebble as a function of time `(t)`

A

B

C

D

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When a round pebble is dropped from the top of a tall cylinder, filled with viscous oil the pebble acquires terminal velocity after some time. Hence option (c) correct.
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