1. Electromagnetic waves require a medium to travel through. A.True B.False

2. An electromagnetic wave in vacuum travels at A.the speed of sound B.the speed of light C.faster than the speed of light D.varying speeds.

3. Which of the following are perpendicular in an electromagnetic wave A.E and B fields B.E field and the direction of propagation C.B field and the direction of propagation D.All of the above

4. In an electromagnetic wave, the magnitudes of the E and B fields A.Are in no way related. B.Are linearly related C.Are inversely related

5. Visible light falls into the electromagnetic spectrum. A.True B.False