(a) Write Stefan.s law and define emissivity of a material. Derive Newton.s law of cooling and plot a graph between temperature and time.

Write Stefan.s law, define emissivity of a material. Derive Newton.s law of cooling and plot of a graph between temperature and time.

State Newton's law of cooling and draw the graph showing cooling of hot water with temperature.

State Newton.s second law of motion.

Two bodies A and B of equal masses, area and emissivity cooling under Newton's law of cooling from same temperature are represented by the graph: If theta is the instantaneous temperature of the body and theta_(0) , is the temperature of surroundings, then relationship between their specific heats is

State Newton.s law of gravitation. Distinguish between g and G.

What is the difference between Stefan's law and Newton's law of cooling ?

A liquid in a beaker has temperature theta(t) at time t and theta_0 is temperature of surroundings, then according to Newton's law of cooling the correct graph between log_e( theta-theta_0) and t is :

In accordance with Newton’s third law of motion -

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

A body cools from a temperature 3 T to 2 T in 10 minutes. The room temperature is T . Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be