When light waves pass through the lenses of a pair of glasses, the light waves . a) conduct b) diffract c) reflect eliminate d) refract

What produces a record of seismic waves? richter scale seismogram barometer seismograph

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass