Question

a) Electrons with an energy of 0.842 eV are incident on a double
slit in which the two slits are separated by 40.0 nm.

What is the speed of these electrons?

_______ m/s

b) Electrons with an energy of 0.842 eV are incident on a double
slit in which the two slits are separated by 40.0 nm.

What is the de Broglie wavelength (in nanometers!) of these
electrons?

_______ nm

c) Electrons with an energy of 0.842 eV are incident on a double
slit in which the two slits are separated by 40.0 nm.

What is the angle between the two second-order maxima in the
resulting interference pattern? In other words, we're looking for
the angle between the second-order maximum on one side of the
central maximum and the second-order maximum on the other side of
the central maximum.

_______ degrees

Answer #1

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