Question #882d4

1 Answer
Jan 25, 2018

I think we’ll say (c) is created by vibrations in fields.


Light is unusual as a wave because it requires no medium to travel through (precisely because it is an oscillation in these two fields, hence the other name for it - an electromagnetic wave.)

Light is not refracted (bent as it slows down) by a metallic surface, but reflected.

Finally, light is a transverse wave (the disturbance is perpendicular to the direction of motion of the wave) not a longitudinal wave (the disturbance ‘wobbles’ back and forth parallel to the direction of travel of the wave.)

Hope that clears it up!