Question

a) Electrons with an energy of 0.842 eV are incident on a double slit in which...

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

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