A plane electromagnetic wave with wavelength 5.0 m, travels in vacuum in the positive direction of an x axis . The electric field of amplitude 215 V/m oscillates parallel to the y axis. What are the (a) frequency (b) angular frequency and ( c) angular wave number of the wave ? (d) What is the amplitude of the magnetic field component ? (e) Parallel to which axis does the magnetic field oscilate ? (f) What is the time -averaged rate of energy flow in watts per square meter associated with this wave ? The wave uniformly illuminates a surface of area 2.0 `m^(2)` . If the surface totally absorbs the wave what are (g) the rate at which momentum is transferred to the surface and (h) the radiation pressure on the surface ?

Explanation

(A) 60 MHz , (b) `3.8xx10^(8) ` rad/s , (c ) `1.3m^(-1)` , (d) `0.72 mu T ,` (e ) z, (f) 61 `W//m^(2) ` (g) 0.41 `mu N` (h) 0.20 m Pa