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JEE Main 27 July 2021 Shift 2 Solved Paper

Section: Physics

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Question : 3 of 90

Marks: +1, -0

A raindrop with radius R=0.2mm falls from a cloud at a height h=2000m above the ground.
Assume that the drop is spherical throughout its fall and the force of buoyance may be neglected, then the terminal speed attained by the raindrop is :
[Density of water fw=1000kgm−3 and Density of air fa=1.2kgm−3,g=10m∕s2
Coefficient of viscosity of air =1.8×10−5Nsm−2 ]

[27 Jul 2021 Shift 2]

250.6ms−1
43.56ms−1
4.94ms−1
14.4ms−1

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