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Two metal spheres are falling through a liquid of density  with the same uniform speed. The material density of sphere 1 and sphere 2 are  and  respectively. The ratio of their radii is

a)

b)

c)

d)



Question ID - 57284 | SaraNextGen Top Answer

Two metal spheres are falling through a liquid of density  with the same uniform speed. The material density of sphere 1 and sphere 2 are  and  respectively. The ratio of their radii is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

The terminal velocity of the spherical body of radius , density  falling through a liquid of density  is given by

Where  is the coefficient of viscosity of the liquid

 and

According to the given problem,

 or

Substituting the given values, we get

127 votes


127