Explain the law of conservation of energy.
Explain how does the Lenz's law show the conservation of energy in the phenomenon of electromagnetic induction.
(a) State and explain the law of conservation of energy with an example.
(b) Explain how the total energy of a swinging pendulum at any instant of time is conserved. Illustrate your answer with the help of a labelled diagram.
Explain the law of conservation of energy. [3 MARKS]