An electron microscope gives higher magnification than an optical microscope, because : A. It uses more powerful lenses B. The velocity of electron is smaller than that of visible light C. The electrons have more energy than the light particles D. The wavelength of electrons is smaller as compared to the wavelength of visible light

The correct answer is D. The wavelength of electrons is smaller as compared to the wavelength of visible light.

The wavelength of a wave is the distance between two consecutive crests or troughs. The shorter the wavelength, the higher the resolution of the image. Electrons have a much shorter wavelength than visible light, which allows them to produce images with much higher resolution.

Option A is incorrect because the power of a lens does not affect its ability to resolve detail.

Option B is incorrect because the velocity of electrons does not affect their wavelength.

Option C is incorrect because the energy of electrons does not affect their wavelength.