Question

When light propagates in vacuum there is an electric field and a magnetic field. These fields
(a) are constant in time
(b) have zero average value
(c) are perpendicular to the direction of propagation of light.
(d) are mutually perpendicular?

Answer 1

Answer:

c and d both

because in in propagation of light electric field vector and magnetic field vector are mutually perpendicular and lie in a plane which is mutually perpendicular to the direction of propagation of light