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COMEDK20269 May 2026Evening ShiftPhysicsDual Nature of MatterActual

The basic principle used behind the working of electron microscope is:

Options

  1. AWave nature of electrons.
  2. BMagnifying power of very thin aperture convex lenses.
  3. CElectrostatic field created by a beam of electrons.
  4. DUsing charged mirrors to achieve the desired magnification.

Correct answer

A. Wave nature of electrons.

Step-by-step solution

The working of an electron microscope is based on the wave nature of electrons. According to de Broglie's hypothesis, moving electrons behave as waves. The wavelength of these electron waves is much smaller than that of visible light, which allows for a much higher resolving power and magnification compared to optical microscopes. Answer: Wave nature of electrons.

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