As we discussed in lecture, the position of the band head in the p and r branches of an electronic spectrum can be determined by finding the j value at which the spectral lines in the p and r branches reach a minimum and a maximum wavenumber, respectively. derive the expressions of the jhead for both branches.

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit