A "1m" mercury germicide lamp emits 50 Watt of 0.2537?m light through its quartz tube .
a) compute the frequency of this light,
b) the light's oscillation time, and
c) the Energy of one of its photons (in eV).
d) how many of these photons are emitted by the lamp in 1 second?
e) how many , in 1 oscillation time?