Question

Two spheres of equal masses but radii R and 2R are allowed to fall in a liquid.The ratio of their terminal velocities is? pls...pls...emergency.

Answer 1

You can check out the picture for answer. Hope it helps .

Answer 2

Dear Student,

◆ Answer -

v1/v2 = 1/4

● Explanation -

Terminal velocity of a sphere is given by -

v = 2r²(d-do)g / 9η

So v ∝ r²

For two spheres,

v1/v2 = (R1/R2)²

v1/v2 = (R/2R)²

v1/v2 = (1/2)²

v1/v2 = 1/4

Hence, liquid.The ratio of terminal velocities of spheres is 1:4.

Thanks dear. Hope this helps you...