Question is ⇒ Fields are said to be circularly polarized if, Options are ⇒ (A) their magnitudes are equal, (B) their magnitudes are equal and they differ in phase by ± 90°, (C) their magnitudes are unequal and they differ in phase ± 90°, (D) their magnitudes are unequal and they are in phase, (E) , Leave your comments or Download question paper.

Question is ⇒ Fields are said to be circularly polarized if, Options are ⇒ (A) their magnitudes are equal, (B) their magnitudes are equal and they differ in phase by ± 90°, (C) their magnitudes are unequal and they differ in phase ± 90°, (D) their magnitudes are unequal and they are in phase, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Fields are said to be circularly polarized if
A.	their magnitudes are equal [Wrong Answer]
B.	their magnitudes are equal and they differ in phase by ± 90° [Correct Answer]
C.	their magnitudes are unequal and they differ in phase ± 90° [Wrong Answer]
D.	their magnitudes are unequal and they are in phase [Wrong Answer]
View Answer 1 -2 Explanation:- Answer : B 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 :

⇒ The baud rate is
not equal to signalling rate
always equal to bit transfer rate
equal to twice the bandwidth of an ideal channel
equal to half the bandwidth of ideal channel

⇒ In figure, i(t) is a unit step current. The steady state value of v(t
2 V
3 V
6 V
9 V

⇒ Consider the following part of a C program float a
2 and 9
2.0 and 9.0
2.0 and 2.0
9.0 and 2.0

⇒ Karnaugh map is used to
minimise the number of flip flops in a digital circuit
minimise the number of gates only in a digital circuit
minimise the number of gates and fan in a digital circuit
design gates

⇒ Which one of the following is a cut set of the graph in the given fig
1, 2, 3, and 4
2, 3, 4, and 6
1, 4, 5, and 6
1, 3, 4, and 5

⇒ A scheme shown below is to generate a wide band FM modulate sign
88 MHz, 112 MHz
96 MHz, 104 MHz
92 MHz, 108 MHz
90 MHz, 110 MHz

⇒ In 8086 the flag which enables or disables external interrupts is
IF
DF
TF
CF

⇒ For representing two sinusoidal voltages on a phasor diagram
Both voltages must be of the same frequency
Both voltages must be sinusoidal but may be of different frequencies
One of the voltages must be of 50 Hz
The frequency of one must be integral of that of other

⇒ One ampere means the flow of
One coulomb each minute
One electron per second
One coulomb per second
One coulomb each hour

⇒ Ferroelectric materials are those which
cannot be polarized
have a permanent polarization
have a_e equal to zero
have μ_p = 0

⇒ The name field effect is related to the __________ layers of a JFET.
depletion
drain
source
gate

⇒

Assertion (A): In a BCD to 7 segment decoder the number of outputs active at one time is always the same.

Reason (R): A decoder can be used to interface BCD input to LED display.

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 true, R is false
A is false, R is true

⇒ Top loading in an antenna increases
effective height
beam width
input capacitance
bandwidth

⇒ Which liquid crystal is used for LCD display?
Mercury
Pneumatic fluid
Aqua regia
Liquid boron

⇒ A T network is inserted between source and R as shown in figure. The resistance seen by the source remains the same with or without T network when
5 Ω
10 Ω
15 Ω
20 Ω

⇒ A is even or B is true. Negation of above statement is
A is odd or B is false
A is odd and B is false
A is even or B is false
A is even and B is false

⇒ Find the number of loop equation and number of possible trees for the given gr
7, 2097152
7, 262144
7.5764801
6, 823543

⇒ The following circuit resonate
0.5 Hz
5 Hz
1 rad/sec
0.5 rad/sec

⇒ A communication channel with additive white Gaussian noise, has a bandwidth of 4 kHz and an SNR of 15. Its channel capacity is
1.6 kbps
16 kbps
32 kbps
256 kbps

⇒ The block diagram of the given figure
On-off controller
On-off controller with differential gap
On-off controller with integral gap
Three position controller

⇒ Transistor are free from which type of noise?
Resistance noise
Partition noise
Flicker noise
Shot noise

⇒

Assertion (A): A high junction temperature may destroy a diode.

Reason (R): As temperature increases the reverse saturation current increases.

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

⇒ Dielectric constant of transformer oil is about
1
4
10
20

⇒ In figure the voltage distribution on a vertical earthed antenna is represented
curve A
curve B
curve C
curve D

⇒ The disturbance from adjacent telephone line is known as
cross fire
cross talk
inductive disturbance
none of the above

⇒

Assertion (A): ECL gate has very high speed of operation.

Reason (R): Transistors in ECL do not go into saturation region.

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 true, R is false
A is false, R is true

⇒

Match the following:

	List I		List II
A.	T (Reflection coefficient) = 0	1.	(Z_L - Z_o)/(Z_L + Z_o)
B.	T = - 1	2.	Z_L = Z_o
C.	T = + 1	3.	Z_L = 0
D.	- 1 < T < + 1	4.	Z_L = ∞

A-2, B-3, C-4, D-1
A-2, B-4, C-1, D-3
A-1, B-2, C-3, D-4
A-3, B-2, C-4, D-1

⇒ Which device can detect the presence of both forward and backward waves in a waveguide?
Filter
Detector
Directional coupler
Magic T

⇒ The poles of an RC function
are simple and lie on jω axis
are simple and lie on negative real axis
may be complex conjugate
may be anywhere in s plane

⇒ In a certain inverter circuit each thyristor carries 26.67 A for 60°, 13.33 A for 120° and zero A for 180° of the cycle. The rms current of thyristor is
20 A
13.33 A
6.67 A
3.33 A