The diagram shows how light rays bend when they enter the human eye. Which statement is not true about the eye in the diagram?
(A) It is farsighted.
(B) Images focus in front of the retina.
(C) The focal length is too short.
light
(D) A concave lens can correct the
vision problem.

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

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

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?