The atoms of a certain material can absorb red and blue light frequencies. what happens to yellow light that shines on it?

it is absorbed.
it is reflected.
it is transmitted.
it is either reflected or transmitted.

It is either reflected or transmitted.

Explanation:

The color of the objects is due to the light reflected to our eyes.The light falls on the surface of the object and the color which does not get absorbed by the object gets transmitted or reflected and thus appear to be of the same color as the reflected or transmitted light.

Example:  If an object absorbs all of the frequencies of visible light except for the frequency associated with green light, then the object will appear green in color.

if you're asking what comes out, it's steam.