In solar heaters, solar energy is converted in to 

If we use electric heater to heat water then the energy converted into heat is 

Which of the following units cannot be used to measure temperature?

Which thermometer is used to measure the temperature of objects. 

Heat is transferred from the hotter end to the colder end of an object is known as?

Melting point of ice is 

An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will?

First thermometer was invented by 

The materials which allow heat to pass through them easily are called?

Which is example for conductors?