A medium of relative permittivity Œµr2 = 2 forms an interface with f – McqOptions

MCQOPTIONS

1.	A medium of relative permittivity Œµr2 = 2 forms an interface with free space. A point source of EM energy is located in the medium at a depth of 1 meter from the interface. Due to the total internal reflection, the transmitted beam has a circular cross-section over the interface. The area of the beam cross section at the interface is given by
A.	2p m2
B.	p2 m2
C.	m2
D.	p m2
Answer» E.

Discussion

No Comment Found

Related MCQs

A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla.The force on the conductor will be nearly
When a dielectric slab is introduced in a parallel plate capacitor, the potential differencebetween plates will
If the sheet of a bakelite is inserted between the plates of an air capacitor, thecapacitance will
The working of a meter is based on the use of a permanent magnet. In order to protectthe meter functioning from stray magnetic fields
at a point may be defined as equal to the lines of force passing normally through a unitcross section at that point.
Three capacitors each of the capacity C are given. The resultant capacity 2/3 Ccan be obtained by using them
Two infinitely long parallel conductors in vacuum anf' separated 1 metre between centres >rhen a current of 1 ampere flows thn. ugh each conductor, produce on each otLer a force of
A coil is wound on iron core which carries current I. The self-induced voltage in the coilis not affected by
The time constant and R-C circuit may also be defined as the time during which thecharging current falls to ______ percent of its initial maximum value,
A coil induces 350 mV when the current changes at the rate of 1 A/s. The value ofinductance is