Question

Two rain drops falling through air have radii in the ratio 1 : 2. They will have terminal velocity in the ratio ______.

पर्याय

• 1 : 4

• 2 : 1

• 4 : 1

• 1 : 2

Answer 1

Two rain drops falling through air have radii in the ratio 1 : 2. They will have terminal velocity in the ratio 1 : 4.

Explanation:

V ∝ r²

`"V"_1/"V"=(1/2)^2=1/4`