If the radii of two droplets are in the ratio of 2:3, then their terminal velocities will be in the ratio?

اگر دو قطروں کا ریڈیائی 2:3 کے تناسب میں ہے، تو ان کے ٹرمینل کی رفتار کس تناسب میں ہوگی؟
Answer: 9:4
Explanation

If the radii of two droplets are in the ratio of 2:3, then their terminal velocities will be in the ratio of the inverse square of their radii. Since the terminal velocity is proportional to the square of the radius, the ratio will be:

(3/2)2 : (2/3)2 = 9/4 : 4/9.

This question appeared in Past Papers (1 times)
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EVERYDAY SCIENCE (1 times)

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