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 ▸Water flows through an electric shower at a rate of 6kg per minute. Assuming no heat is transferred to the surroundings, what power is required to heat the water by 20K as it flow through the shower?
An alpha particle is accelerated with 5MeV of kinetic energy towards the nucleus of a gold atom with atomic number 79. What is the distance of closest approach that is reached by the alpha particle?
If a car is travelling over a curved hill, what is the maximum speed it can travel before losing contact with the road surface?
Draw and describe the major points of a typical stress-strain graph for a metal.