An electron microscope gives better resolution than optical microscope because
Question and options
An electron microscope gives better resolution than optical microscope because
- it uses more powerful lenses
- the velocity of electrons is smaller than that of light
- the electrons have more energy than light photons
- the wavelength of electrons is shorter than that of visible light
Answer and explanation
Correct answer: D - the wavelength of electrons is shorter than that of visible light
Resolution is limited by wavelength; accelerated electrons have de Broglie wavelengths far smaller than visible light (~0.005 nm vs 400-700 nm), so the electron microscope resolves finer detail.
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