In an electron microscope, the resolution that can be achieved is of the order of the wavelength...

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In an electron microscope, the resolution that can be achieved is of the order of the wavelength of electrons used. To resolve a width of \( 7.5 \times 10^{-12} \mathrm{~m} \), the minimum electron energy required is close to
(a) \( 500 \mathrm{keV} \)
(b) \( 100 \mathrm{keV} \)
(c) \( 1 \mathrm{keV} \)
(d) \( 25 \mathrm{keV} \)
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