Well, the question goes like this,(adsbygoogle = window.adsbygoogle || []).push({});

A particle of mass m is trapped in an infinitely deep one-dimensional potential well between x = 0 and x = a and at a time t=0,, the wave fuction is given as

Φ(x,t=0)=sin(((πx)/a))cos(((2πx)/a))

(i) What possible values may be found for energy of particle?

(ii) What is the expected (or average) value of the energy of the particle?

Well, we got the hints of using

sinAcosA = (1/2){sin(A+B)+sin(A-B)}

We got (1/2){sin(3*pi*x/a) - sin(pi*x/a)}.... but not sure what to do next.

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# QM Problems with wavefunction given in sin and cos.

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