Assertion : An electron microscope is based on de Broglie hypothesis.
Reason : A beam of electrons behaves as a wave which can be converged by electric and magnetic lenses.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not correct explanation of A
(c) A is true but R is false
(d) A and R are false
