Question

describe the rubbed ford experiment expain effect of intensity of radiation 2 effect of frequency

Answer 1

Count Rumford performed a cannon-boring experiment, in which he revealed the connections between heat and work. In his experiment he boiled water using the heat generated from the friction of continuous boring of a cannon. Here the amount of heat produced depended on the work done by the horses employed for turning the drill but not on the sharpness of the drill.
This experiment showed that heat is a form of energy and conversion of energy from one form to another i.e. from work to heat.
Both intensity and frequency have increasing effect on the heat radiation.