A drop of water of radius 0.0015 mm is falling in air. If the coefficient of viscosity of air is 2.0×10 km m¯¹s the terminal velocity of the drop will be (g=10m s¯²)

Question:

24.A drop of water of radius 0.0015 mm is falling in air. If the coefficient of viscosity of air is 2.0×10 km m¯¹s the terminal velocity of the drop will be (g=10m s¯²)

Options :

a) 1.0 x 10^-4 ms^-1
b) 2.0 x 10^-4 ms^-1
c) 2.5 x 10^-4 ms^-1
d) 5.0 x 10^-4 ms^-1

Answer :

c) 2.5 x 10^-4 ms^-1

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