How, given the threshold frequency and the kinectic enery of a photon, do you determine the frequency of the phton?
You can use E= hfo + KE and E=hf (Einstien's equations) to work how the frequency of a photon, where fo is the threshold frequency and h is Planck's constant.
HW
Related Physics A Level answers
All answers ▸Define a geostationary orbit
2 Capacitors (c1 = 500mf) and (c2=300mf), are connected in parallel to a 10v d.c supply. Calculate the total capacitance of the circuit, and hence the total energy stored in the capacitors.
what is the centripetal force?
A box initially at rest is on a plank, of length 5m, that is elevated at an angle such that tan(a)=3/4. When it reaches the end of the plank it has velocity 5ms^-1. Calculate the average frictional force on the box.