Question is ⇒ A TEM wave incident obliquely on a dielectric boundary with εr1 = 2 and εr2 = 1, the angle of incidence for total reflection is, Options are ⇒ (A) 30°, (B) 60°, (C) 45°, (D) 90°, (E) , Leave your comments or Download question paper.

Question is ⇒ A TEM wave incident obliquely on a dielectric boundary with εr1 = 2 and εr2 = 1, the angle of incidence for total reflection is, Options are ⇒ (A) 30°, (B) 60°, (C) 45°, (D) 90°, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A TEM wave incident obliquely on a dielectric boundary with ε_r1 = 2 and ε_r2 = 1, the angle of incidence for total reflection is
A.	30° [Wrong Answer]
B.	60° [Wrong Answer]
C.	45° [Correct Answer]
D.	90° [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒

Assertion (A): An ideal rectifier should have unity harmonic factor

Reason (R): An ideal rectifier should have unity displacement factor.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ An angle modulated signal is expressed by f_a(t) = cos (2 x 10⁸ pt) + 75 sin (2 x 10³ pt). The peak frequency deviation of the carrier is
1 kHz
7.5 kHz
75 kHz
100 MHz

⇒ Strength of space wave is not dependent on distance.
TRUE
FALSE

⇒ Examine the following truth table. The product of sum from this truth tabl
(X + Y) (X + Y)
(X + Y) (X + Y)
(X + Y) (X + Y)
(X + Y) (X + Y)

⇒ A h is the unit of quantity of electricity.
TRUE
FALSE

⇒ The communicating capacitor reduces turn on time because
it acts as an open circuit
it allows maximum base circuit to flow
it aids in removing the excess carrier from the base region
none of these

⇒ A half bridge inverter
needs a 3 wire dc supply
may use a two wire or 3 wire dc supply
has higher output voltage if fed from 3 wire dc supply
has higher efficiency if fed from 3 wire dc supply

⇒ Hollow waveguides are used as transmission lines at frequencies
above 1 GHz
above 5 GHz
above 10 MHz
above 1 MHz

⇒ Consider the following operation in respect of Wheatstone bridge (K_b, denotes battery key, K_g denotes galvanometer key)

open K_b
close K_g
close K_b
open K_g

The correct sequence of operations is
1, 2, 3, 4
3, 1, 2, 4
4, 3, 2, 1
3, 2, 4, 1

⇒ The character set of Fortran 77 includes lower case alphabets a to z.
TRUE
FALSE

⇒ In communication receivers the fidelity is provided by
audio stage
detector range
mixer stage
all of the above

⇒ The circuit shown in the figure, with R = 1/3 Ω, L = 1/4H, C = 3F has input voltage v(t) = sin2t. The resulting current i(t
5 sin (2t + 53.1°)
5 sin (2t - 53.1°)
25 sin (2t + 53.1°)
25 sin (2t - 53.1°)

⇒

Assertion (A): In SSB, carrier is suppressed by about 45 dB

Reason (R): SSB is standard form for radio communication

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ Linear diode detector utilizes
linear portion of static characteristics of diode
linear portion of dynamic characteristic of diode
square law portion of dynamic characteristics of diode
rectification property of diode

⇒

Assertion (A): A transducer needs an output measuring or display device for measuring a non electrical quantity.

Reason (R): In some transducers the output voltage is too small and needs amplification before it can be measured.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true R is false
A is false R is true

⇒ A counter type A/D converter contains a 4 bit binary ladder and a counter driven by a 2 MHz clock. Then conversion time
8 μ sec
10 μ sec
2 μ sec
5 μ sec

⇒ For a base current of 10 μA, what is the value of collector current in common emitter if β_dc = 100
10 μA
100 μA
1 mA
10 mA

⇒ An audio signal is to be transmitted digitally. Which is the system best suited for good fidelity?
8 bit PCM
13 bit PCM
32 bit PCM
PCM system with non-uniform quantizer

⇒ Which of the following diode is designed to operate in the breakdown region?
Signal diode
Power diode
Zener diode
None of the above

⇒ The counter shown in the given figure
Synchronous
Johnson
Ring
None of the above

⇒ After the death of INSAT-IB, the mainstay of the entire Indian satellite network for some time to come would be
INSTELSAT-V
INSAT-ID
INSAT-2
ARABSAT

⇒ In a CE amplifier
both ac and dc load lines have the same slope
the ac load line has more slope than dc load line
the ac load line has less slope than dc load line
the two load lines may have slope more than the other

⇒ In a bipolar transistor, the base collector junction has
forward bias
reverse bias
zero bias
zero or forward bias

⇒ The feedback control system shown in the given figure repres
Type 0 system
Type 1 system
Type 2 system
Type 3 system

⇒ Induction wattmeter is an absolute instrument.
TRUE
FALSE

⇒ In figure V_BE = 0.7 V. If base current required to saturate the transistor is 0.1 mA, V_{i5 V
5.7 V
10 V
10.7 V}

⇒ Which of the following statement regarding waveguides is incorrect?
At waveguide can be coupled to a coaxial cable
At frequencies below the cut off value the wave progresses across the waveguide after total reflections
Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves
Waveguides can handle large power at UHF and microwaves

⇒ When a lead acid cell discharges, the specific gravity of electrolyte increases.
TRUE
FALSE

⇒ In a Vidicon camera tube, the beam current is controlled by
grid G₁
grid G₂
grids G₁, G₂, G₃
grid G₂, G₃

⇒ A communication channel disturbed by additive white, Gaussian noise has a bandwidth of 4 kHz and SNR of 15. The highest transmission rate that this channel can support (in k bits/sec) is
16
1.6
3.2
60