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An electron beam in which electrons have a wavelength of 2.4pm is used in an electron...

An electron beam in which electrons have a wavelength of 2.4pm is used in an electron microscope with an aperture diameter of 2mm.

(a) What is the angular resolution of this microscope, i.e. what is the minimum angle, in radians, that can be resolved?

(b) Compare your answer in part (a) to the resolution achieved with visible light with wavelength of 550nm.

(c) Compute the wavelength of photons with the same kinetic energy as the electrons and comment on why this is important in terms of the resolution achieved with electron microscopes.

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