advanced electromagnetism assignment ?please I attach all file you need it?

KYA320 Electromagnetism Assignment 5
Set : 1 April 2016
Due : 8 April 2016
1.

The intensity of sunlight at the Earth?s surface is 1.2 kWm-2
a. Find the electric field of this radiation at the Earth?s surface.
b. Find the radiation pressure if the sunlight is 100% reflected at normal
incidence
c. Find the radiation pressure if the sunlight is absorbed.

2.

A uniform plane wave with a magnitude of 3000 Vm-1 and a frequency of
100 MHz is propagating in free space. It is incident on seawater
(? = 5 Siemens m-1, ? e = 450 ; ? m = 1 at this frequency) at an angle of 30?. Write
expressions for the transmitted E and H fields if the incident E field is linearly
polarized perpendicular to the plane of incidence.
NOTE: In answering this problem you should carefully define the coordinate
system you are using. Also, you cannot use the approximation n = ? e to find
the refractive index in seawater.

3.

Light of wavelength 500nm in glass with a refractive index of 1.5 is incident at
45? on an interface with air. What is the skin depth for the penetration of the
transmitted electric field into the air?