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The normalized wave function of an electron in a linear accelerator is ψ = (cos χ)eikx...

The normalized wave function of an electron in a linear accelerator is ψ = (cos χ)eikx + (sin χ)e–ikx, where χ (chi) is a parameter. (a) What is the probability that the electron will be found with a linear momentum (a) +, (b) −? (c) What form would the wave function have if it were 90% certain that the electron had linear momentum +? (d) Evaluate the kinetic energy of the electron.

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