Physics
What physical quantity does electron volt (eV) measure? How is it related to the S.I. unit of that quantity?
Related Questions
Give an example when work done by the force of gravity acting on a body is zero even though the body gets displaced from its initial position.
A boy of mass m climbs up a stairs of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Complete the following sentence
(a) 1 J = ….. calorie.
(b) 1 kWh = ….. J.
Name the physical quantity which is measured in calorie. How is it related to the S.I unit of that quantity?