Question

Electrons used in electron microscope are of the wavelength

• A. 0.5$\dot{A}$
• B. 0.15$\dot{A}$
• C. 0.25$\dot{A}$
• D. 0.30$\dot{A}$

Answer 1

The correct option is A 0.5$\dot{A}$

Electron microscope uses a beam of electrons as a source of illumination instead of light. The beam of electrons has a wavelength of 0.54 $\mathring{A}$.
Hence, option A is correct.