Question is ⇒ In a rectangular waveguide if operating frequency is greater than cut off frequency then propagation constant is, Options are ⇒ (A) purely real, (B) purely imaginary, (C) equal to unit, (D) a complex number, (E) , Leave your comments or Download question paper.

Question is ⇒ In a rectangular waveguide if operating frequency is greater than cut off frequency then propagation constant is, Options are ⇒ (A) purely real, (B) purely imaginary, (C) equal to unit, (D) a complex number, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In a rectangular waveguide if operating frequency is greater than cut off frequency then propagation constant is
A.	purely real [Wrong Answer]
B.	purely imaginary [Correct Answer]
C.	equal to unit [Wrong Answer]
D.	a complex number [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 :

⇒ If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is
zero
negative
zero or negative
positive

⇒ The manufacturing technique used to manufacture strip type transmission line is
photoetching technique
oxidation technique
cladding
epitaxial

⇒ In a JK flip flop output Q_n = 1 and it does not change when clock pulse is applied. The possible combination of J_n and K_n is (X denotes don't care)
X and 0
X and 1
0 and X
1 and X

⇒ For the block diagram of the given figure, the equation describing system dynamic
(1 + RCs) Δθ₀(s) = Δθ_i(s) + R Δ H(s)
(1 + RCs) [ΔH(s)] = Δθ(s) - Δθ₀(s)
(1 + RCs) Δθ₀(s) = RΔ H(s) - Δ θ_i(s)
(1 + RCs) Δθ_i(s) = Δ H(s)[R] - Δθ₀(s)

⇒

Assertion (A): Mnemonics are used in assembly level program.

Reason (R): Computer cannot understand mnemonics.

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 R is wrong
A is wrong R is correct

⇒ In a 7 segment display, LEDs b and c lit up. The decimal number displayed is
9
7
3
1

⇒ 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

⇒ The process of entering data into ROM is called
writing
burning
decoding
registering

⇒ A buffer amplifier should have
high output impedance and high input impedance
high output impedance and low input impedance
low output impedance an low input impedance
low output impedance and high input impedance

⇒ In a single phase power factor meter the phase difference between currents in the two pressure coils is
exactly 0°
approximate 0°
exactly 90°
approximate 90°

⇒ The numerical value of directive gain may lie between
1 and + 1
0 and 1
0 and ∞
1 and ∞

⇒ An amplifier has to amplify pulses of 1 H-s duration. The minimum bandwidth of amplifier must be
10 kHz
10 MHz
1 kHz
1 MHz

⇒ The filter circuit for feeding tweeter has
an inductance in series and a capacitance in parallel
a capacitance in series and an inductance in parallel
a resistance in series and a capacitance in parallel
a capacitance in series and a resistance in parallel

⇒

Assertion (A): The circuit of figure thyristor will conduct for 180° during positive half cycle if it is continuously fir
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

⇒ The frequency response of an ideal tuned amplifier should be as represented in figur
A
B
C
D

⇒ Z_L = 200 Ω and it is desired that Z_i = 50 Ω The quarter wave transformer should have a characteristic impedance of
100 Ω
40 Ω
10000 Ω
4 Ω

⇒ Which mode has the lowest cut off frequency in circular wave guides?
TE₀₁
TE₁₁
TE₂₀
TE₂₁

⇒ As temperature increases the forbidden gap in silicon increases.
TRUE
FALSE

⇒ The function to Calculate the maximum value in the specified field of a database is
DM
DMAX
MAX
DBMAX

⇒ The orbital period of a geostationary communication satellite is
12 hours
24 hours
36 hours
48 hours

⇒ The decimal equivalent of ABC₁₆ is
348
2583
2748
33

⇒ A TV. transmitting aerial is fixed on top of a 150 metre tower located on a mountain 1200 m height. The range of transmitter is
51 km
152 km
152 m
51 m

⇒ It is desired to reduce distortion in a CE amplifier circuit. We should
reduce emitter current
reduce collector current
reduce ac base voltage
reduce base emitter voltage

⇒ In a Ballistic galvanometer
inertia is small and damping is also small
inertia is large and damping is critical
inertia is large and damping is small
both inertia and damping are large

⇒ An FM signal with deviation δ is passed through mixer. Its frequency is reduced five fold. The deviation in output of mixer is
0.28
δ
5 δ
very very high

⇒ Which of the following statements are executable in FORTRAN 77?
Arithmetic IF
Assign
Call
All of the above

⇒ In the circuit shown in the figure the power dissipated in 30 Ω resistor will be maximum if the value of
30 Ω
10 Ω
9 Ω
zero

⇒ In 180° mode of operation of a 3 phase bridge inverter, two thyristors conduct at one time.
TRUE
FALSE

⇒ Two coupled coils with self inductances of 4 mH and 16 mH are connected in series. The maximum possible value of inductance can be
36 mH
20 mH
28 mH
64 mH

⇒ For the logic circuit of the given figure the simplified Boolean equa
Y = (A + B) (C + D) (E + F)
Y = A = B + C + D + E + F
ABCDEF
ABC + DEF