As we all heard about Hawking's radiation which is emitted by blackholes. How can a blackhole emit any kind of radiation when it is said that no light cannot pass the strong gravitational force of the blackhole? Is it true that when the event horizon of the blackhole reduces its mass decreases which eventually increases the temperature as well as the Hawking's radiation? When the event horizon of the black hole decreases it's entropy reduces which violates the entropy principle of thermodynamics how is this possible?