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Homework Statement
The pendulum of a grandfather clock has a period of 1s and makes excursions of 3cm either side of dead centre. Given that the bob weighs 0.2kg, around what value of n would you expect its non negligible quantum amplitudes to cluster?
Homework Equations
The Attempt at a Solution
I think the n here refers to the nth energy eigenvalue so En = (n + 1/2) h/2pi w
How do i work this out? My guess is that I need to work out the energy of a classical harmonic oscillator and equate this to (n+1/2) h/2pi w to get n?
So i know w = 2pi ... but how do i work out the energy of the oscillator? At max displacement it will have no KE, only PE..but how do i work out what this is?
Thanks!