What happens to light as it moves at an angle into a medium that has a lower index of refraction?

a. it speeds up, and the angle increases.
b. it speeds up, and the angle decreases.
c. it slows down, and the angle decreases.
d. it slows down, and the angle increases.

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

Which feature of a heating curve indicates a change ofn state

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o