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Twenty seven similar mercury drops are f...

Twenty seven similar mercury drops are falling through water with terminal velocity 4 cm/s. If the drops combine to form a single drop, then terminal velocity of this bigger drop in water will be

A

12 cm/s

B

40 cm/s

C

108 cm/s

D

36 crm/s

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AAKASH INSTITUTE ENGLISH-MOCK TEST 7-Exercise
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