Aluminum has a frequency threshold of 9.846 × 1014 hz. which best explains what will happen when light with a frequency below the frequency threshold strikes aluminum?

What is i fracture in the crust called when land move up, down or sideways

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

Find the mass, in grams, of 5.00*10^23 molecules of f2