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Assertion (A): Klystron amplifiers use one or more intermediate cavities in addition to buncher and catcher cavity. Reason (R): When one or more intermediate cavities are used the bandwidth can be increased. | |
A. | Both A and R are correct and R is correct explanation of A [Correct Answer] |
B. | Both A and R are correct but R is not correct explanation of A [Wrong Answer] |
C. | A is correct but R is wrong [Wrong Answer] |
D. | A is wrong but R is correct [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
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⇒ Which of the following statements is not true in regard to storage time of a transistor?
The transistor is in active region
Both junctions are forward-biased
The collector injects electrons or holes into the base region
It is the time taken by the carriers to leave the base region
⇒ The forbidden energy gap between the valence band and conduction band will be wide in case of
semiconductors
all metals
good conductors of electricity
insulators
⇒ PID controlled system has
P and I actions in forward path and D action in feedback path
P and I actions in feedback path and actions in forward path
All the three (i.e., P, I and D) actions in forward path
All the three (i.e., P, I and D) actions in feedback path
⇒ In the signal flow graph in the given figure the number of forward paths and pairs of non-touching loops are respecti
3 and 1
3 and 2
4 and 2
2 and 4
⇒ A cavity resonator is
a hollow metallic enclosure
a hollow enclosure having magnetic material as its walls
a hollow enclosure having dielectric material as its walls
either (b) or (c)
⇒ In a CE amplifier the Q point is very close to cutoff point on the load line. This results in
saturation clipping
cut off clipping
both saturation and cut off clipping
either saturation clipping or cut off clipping
⇒ Choose the correct option
var (X) = σ_{x}^{2}
σ^{2} = E(X^{2}) - μ^{2}
var (CX) = C^{2} Var (X)
all
⇒ In a AM wave the carrier and one of the side bands is suppressed. If m = 0.5, the percentage saving in power is
0.5
0.833
0.944
1
⇒ In figure, which value of Z_{L} will cause maximum power to be transferred to the l
2 + j2 Ω
2 - j2 Ω
- 2 Ω
2 Ω
⇒ A function is given f(t) = sin^{2}t + cos^{2}t. Which of the following is true?
f has frequency components at 0 and 1/2p Hz
f has frequency components at 0 and 1/p Hz
f has frequency components at 1/2p and 1/p Hz
f has frequency components at 0, l/2p and 1/p Hz
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Assertion (A): In root locus the breakaway and break in points either lie on real axis or occur in complex conjugate pairs.
Reason (R): All root locus asymptotes intersect on real axis.
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
R is correct but A is wrong
⇒ In the circuit, the value of the voltage sour
-22 V
-12 V
+12 V
-10 V
⇒ For the circuit shown in the figure, the time constant RC = 1 ms. The input voltage is V_{1}(t) = 2 sin 10^{3} t. The output voltage V_{0}(t) is equa
sin (10^{3} t - 45°)
sin (10^{3} t + 45°)
sin (10^{3} t - 53°)
sin (10^{3} t + 53°)
⇒ The Gaussian filter characteristic figure is realiza
TRUE
FALSE
⇒ The operations which occur most frequently in a computer are
fetch
execute
both (a) and (b)
none of the above
⇒ The resonant frequency of a series resonant circuit is
arithmetic mean of half power frequencies
independent of inductance of the circuit
independent of capacitance of the circuit
geometric mean of half power frequencies
⇒ The residual resistivity of a binary alloy at 0 K is
sum of residual resistivities of component metals
difference of residual resistivities of component metals
product of residual resistivities of component metals
dependent on the concentration of minor component in the alloy
⇒ A signal m(t) with bandwidth 500 Hz is first multiplied by a signal g(t) w
δ(t)
m(t)
0
m(t) δ(t)
⇒ Which data transfer scheme is used when large block of data is to be transferred in a computer?
DMA
Programmed data transfer
Either (a) or (b)
Neither (a) nor (b)
⇒ A series resonant circuit has parameters 10 ω, 1 H and 0.1 F. It is excited by a voltage v = 100 sin ωt. At resonant frequency, the power dissipated in the circuit is
1000 W
707 W
500 W
414.14 W
⇒ If a function has only cosine terms, it must satisfy the equation
f(t) = -f(t)
f(-t) = f(t)
f(-t) = -f(t)
none of the above
⇒ What will be the propagation constant at 10 MHz?
3.4 radians/km
34.4 radians/km
344 radians/km
3440 radians/km
⇒ The contents of the commands register are 23 H. Then port C
is an input port
is an output port
is both input as well as output port
none of the above
⇒ In a modified series inverter with two inductors and two capacitors, the load current
has 2 parallel paths
has only one parallel path
can have three parallel paths
has four parallel paths
⇒ The inverse response of a system h(n) = a^{n}∪(n) what is the condition for the system to be BIBO stable?
a is real and +ve
a is real and -ve
|a| > 1
|a| < 1
⇒ The 8085 instruction
'PUSH PSW'
belongs to the groupdata transfer
arithmetic
logic
none of the above
⇒ A linear time-invariant, causal continuous time system has a rational transfer function with simple poles at s = - 2 and s = - 4, and one simple zero at s = - 1. A unit step u(t) is applied at the input of the system. At steady state, the output has constant value of 1. The impulse response of this system is
[exp (- 2t) + exp (-4t)] u(t)
[-4 exp (- 2t) + 12 exp (-4t) - exp (-t)] u(t)
[-4 exp (- 2t) + 12 exp (-4t)] u(t)
[-0.5 exp (- 2t) + 1.5 exp (-4t)] u(t)
⇒ In 8 cavity magnetron the p mode corresponds to a total phase shift equal to
± 8 p radians around the periphery
± 4 p radians around the periphery
± 2 p radians around the periphery
± 16 p radians around the periphery
⇒ An ammeter is
secondary instrument
absolute instrument
recording instrument
integrating instrument
⇒ A standard waveguide W R90 has inside wall dimensions of a = 2.286 cm and b = 1.016 cm. What is the cut-off wavelength for TE_{01} mode?
4.572 cm
2.286 cm
2.032 cm
1.857 cm