The Quantization of Energy, E = Nhf, Is Not Important

Multiple Choice

The quantization of energy, E = nhf, is not important for an ordinary pendulum because:

A) the formula applies only to mass-spring oscillators
B) the allowed energy levels are too closely spaced
C) the allowed energy levels are too widely spaced
D) the formula applies only to atoms
E) the value of h for a pendulum is too large