A ray of light traveling parallel to the principal axis of a concave mirror will be reflected out through the mirror's

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these