Question : An electron microscope gives higher magnifications than an optical microscope because:
Option 1: The velocity of electrons is smaller than that of light.
Option 2: The wavelength of electrons is smaller as compared to the wavelength of visible light.
Option 3: The electrons have more energy than the light particulars.
Option 4: The electron microscope uses more powerful lenses.
Correct Answer: The wavelength of electrons is smaller as compared to the wavelength of visible light.
Solution : The correct option is The wavelength of electrons is smaller as compared to the wavelength of visible light .
Electron microscopes have greater magnifications than optical microscopes because electron wavelengths are much shorter than visible light. The wave-particle duality of electrons and photons (light particles) accounts for this basic variation in wavelength. Electron microscopes utilise electrons with wavelengths in the picometre (pm) range, which is several orders of magnitude smaller than visible light.
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