EM WAVE CHARACTERSTICS II

In the medium of free space, the divergence of the electric flux density will be

• 1

• 0

• -1

• Infinity

For total internal reflection to occur, which condition must be satisfied?

• N1 = N2

• N1 >N2

• N1

• N1x N2=1

Choose the optical fibre material from the given materials.

• Glass

• Plastic

• Silica

• Quartz

Numerical aperture is expressed as the

• NA = sin a

• NA = cos a

• NA = tan a

• NA = sec a

An example for lossless propagation is

• Dielectric waveguide propagation

• Conductor propagation

• Cavity resonator propagation

• It is not possible

Skin depth phenomenon is found in which materials?

• Insulators

• Dielectrics

• Conductors

• Semiconductors

The expression for refractive index is given by

• N = v/c

• N = c/v

• N = cv

• N= 1/cv

When the phase angle between the Ex and Ey component is 0 or 180, the polarization is

• Elliptical

• Circular

• Linear

• Perpendicular

The maximum power transceived by the antenna is in the region of

• Aperture

• Effective aperture

• Maxima lobe

• Minimalobe

In free space, the charge carriers will be

• 0

• 1

• 100

• Infinity