Assertion: An electron microscop can achieve better resolving power then an optical microscope.
Reason : The de-broglie wavelength of the electrons emitted form an electron gun with velocity `500m//s` is much less than `500nm`.
A. If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.
