The oscillating electric field in a n electromagnetic w a v e is given by: Ey=40 Sin(1.5x 10t 500X) V/m

a) Calculate the wavelength of the wave. b) Write down the expression for the oscillating magnetic field of the e.m wave. c) Name the part of e.m spectrum to

which these radiations belong.

The oscillating electric field in a n electromagnetic w a v e is given by:

Ey=40 Sin(1.5x 10t 500X) V/m

a) Calculate the wavelength of the wave.

b) Write down the expression for the oscillating magnetic field of the e.m wave.

c) Name the part of e.m spectrum to

which these radiations belong.

The changing magnetic field does not need to be in existence at the location of the induced electric feild

i) All elements present in nature show radioactivity. (Score: ½)

ii) Rate of decay of all radioactive elements can be characterized by their half period