Question is ⇒ The reflection co-efficient of the simplest standing wave is, Options are ⇒ (A) +1, (B) 1, (C) Zero, (D) Infinity, (E) , Leave your comments or Download question paper.

Question is ⇒ The reflection co-efficient of the simplest standing wave is, Options are ⇒ (A) +1, (B) 1, (C) Zero, (D) Infinity, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The reflection co-efficient of the simplest standing wave is
A.	+1 [Wrong Answer]
B.	1 [Correct Answer]
C.	Zero [Wrong Answer]
D.	Infinity [Wrong Answer]
View Answer 6 -8 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 resistance is 20 ω and inductance is 2H in a RL series circuit, then time constant of this circuit will be
0.001 S
0.1 S
10 S
100 S

⇒ All the rules and laws of D.C. circuit also supply to A.C. circuit containing
Capacitance only
Inductance only
Resistance only
All above

⇒ The r.m.s. value of a sine wave is 100A. Its peak value is
70.7 A
141.4A
150A
282.8 A

⇒ While drawing vector diagram for a series circuit the reference vector is
Voltage
Current
Power
Phase angle

⇒ The r.m.s. value of a half-wave rectified current is 100 A. Its value for full-wave rectification would be____ amperes.
141.4
200
200/π
40/π

⇒ The dual of a loop is
Twig
Node pair
Mesh
Tree

⇒ The time constant of a series R-C circuit is given by
R/C
RC²
RC
R²C

⇒ In a pure resistive circuit
Current lags behind the voltage by 90°
Current leads the voltage by 90°
Current can lead or lag the voltage by 90°
Current is in phase with the voltage

⇒ The dual of a link is
Twig
Node
Loop
Tree branch

⇒ For a sine wave with peak value E_max the average value is
0.636 E_max
0.707 E_max
0.434 E_max
1.414 E_max

⇒ The period of a wave is
The same as frequency
Time required to complete one cycle
Expressed in amperes
None of the above

⇒ The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of____ degrees
90
60
45
30

⇒ The capacitors for power factor correction are rated in terms of
Voltage
VA
kW
kVAR

⇒ A coil with large distributed capacitance has a
High resonant frequency
Low resonant frequency
Low quality factor
Low resistance

⇒ In A.C. circuit the power curve is a sine wave having
Double the frequency of voltage
Same frequency as that of voltage
Half the frequency of the voltage
None of these

⇒ A network is said to be non-linear if it does not satisfy
Homogeneity condition
Superposition condition
Both (A) and (B)
Associative condition

⇒ The voltage of domestic supply is 220 V. This figure represents-
Mean value
r.m.s. value
Peak value
Average value

⇒ The r.m.s. value of pure cosine function is
0.5 of peak value
0.707 of peak value
Same as peak value
Zero

⇒ For 200 V r.m.s. value triangular wave, the peak voltage will be
200 V
222 V
282 V
346 V

⇒ The form factor is the ratio of
Peak value to r.m.s. value
r.m.s. value to average value
Average value to r.m.s. value
None of these

⇒ The power factor of a D.C. circuit is always
Less than unity
Unity
Greater than Unity
Zero

⇒ The r.m.s. value and mean value is the same in the case of
Triangular wave
Sine wave
Square wave
Half wave rectified sine wave

⇒ The power factor of a series R-L-C circuit at its half-power points is
Unity
Lagging
Leading
Lagging or leading

⇒ In a R-L-C series circuit if voltage V across the circuit is reduced to half the current I will change to
2 I
I/2
3/4 I
5/8 I

⇒ Higher the Q of a series circuit
Broader its resonance curve
Narrower its pass band
Greater its band width
Sharper its resonace

⇒ At____ frequencies the parallel R-L circuit behaves as purely resistive.
Low
Very low
High
Very high

⇒ The ratio of active power to apparent power is known as ____ factor.
Demand
Load
Power
Form

⇒ The shunt element of prototype high pass filter is
Resistive
Inductive
Capacitive
Combination of L and C

⇒ The ratio of the bandwidth to the resonance frequency is called the____ of the circuit.
Impedance
Susceptance
Quality factor
Selectivity

⇒ Power factor of an inductive circuit is usually improved by connecting capacitor to it in
Parallel
Series
Either (A) or (B)
None