Question

3. A metal spoon kept in a hot cup of tea gets heated due to
4. Heat from the Sun reaches us due to​

Answer 1

Answer:

3) This is an example of heat transfer by conduction as the heat from the tea goes into the spoon. Energy is transferred from the hot, fast moving particles of the tea to the spoon.

4)Radiation is the transfer of heat energy through space by electromagnetic radiation. Most of the electromagnetic radiation that comes to the earth from the sun is invisible. Only a small portion comes as visible light. Light is made of waves of different frequencies.