1. A substance which allows visible light to pass through freely is ______. A. opaque B. reflective C. transparent D. translucent
2. A substance can be opaque to certain wavelengths of electromagnetic radiation, but transparent to others. A. True B. False
3. _______ is when either the vertical or the horizontal component of light waves is eliminated.

A. Refraction
B. Scattering
C. Transmission
D. Polarization