Davisson-Germer, Uncertainty, Compton & X-Rays
Given below are two statements: one is labeled as Assertion A and the other is labelled as Reason R.
Assertion A: An electron microscope can achieve better resolving power than an optical microscope.
Reason R: The de Broglie's wavelength of the electrons emitted from an electron gun is much less than wavelength of visible light.
In the light of the above statements, choose the correct answer from the options given below:
Show answer and solution
Answer: (c)
- Resolving power improves as wavelength decreases.
- Electrons accelerated through kV have m, far below visible light ( m).
- So A is true and R correctly explains it: answer (c).