(a) Explain Stokes Law
(b) Define terminal velocity
(c) Describe an experiment to determine the terminal velocity

Describe an experiment to verify the laws of reflection of light.

State the laws of reflection and describe an experiment to verify them.

Twenty seven similar mercury drops are falling through water with terminal velocity 4 cm/s. If the drops combine to form a single drop, then terminal velocity of this bigger drop in water will be

Eight identical droplets, each falling under gravity in the earth's atmosphere with terminal velocity v , combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following.

Eight rain drops of radius 1mm each falling downwards with a terminal velocity of 5 cm s^(-1) collapse to form a bigger drop. Find the terminal velocity of bigger drop.

If n identical water droplets falling under gravity with terminal velocity v coalesce to form single drop which has the terminal velocity 4v. Find the number n .

n drops of water, each of radius 2 mm , fall through air at a terminal velocity of 8 cms^(-1) If they coalesce to form a single drop, then the terminal velocity of the combined drop is 32 cms^(-1) The value of n is

Eight drops of water, each of radius 2mm are falling through air at a terminal velcity of 8cms^-1 . If they coalesce to form a single drop, then the terminal velocity of combined drop will be

Define Stoke’s law. Define and derive an expression for terminal velocity.

What is Stoke.s law ? Define terminal velocity and calculate it for a spherical body moving vertically in a liquid and show that it is proportional to square of the radius of the spherical body.