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Q1. | If a wave is propagated in free space, it will be in nature of |

A. | TE [Wrong Answer] |

B. | TM [Wrong Answer] |

C. | TEM [Correct Answer] |

D. | Any one of above [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ A half adder adds

2 bits

3 bits

4 bits

2 or 3 bits

⇒ What does the

*B*register contain after the first MOV B, A has been executed?

40 H

60 H

80 H

80 D

⇒ Consider a baseband binary PAM receiver shown below. The additive channel noise

*n*(

*t*) is whit with power spectral density S

_{N}(

*f*) = N

_{0}/2 = 10

^{-20}W/Hz. The low-pass filter is ideal with unity gain and cutoff frequency 1 MHz. Let Y

_{k}represent the random variable

*y*(

*t*

10

1.414 x 10

2 x 10

_{k}10^{10}10

^{7}1.414 x 10

^{-10}2 x 10

^{-20}

⇒ An AND gate has two inputs A and B and one inhibit input S. Out of total 8 input states, output is 1 in

1 state

2 states

3 states

4 states

⇒ The amplitude modulated wave is given by __________

25, 0.7, 0.3

25, 0.7, - 0.3

24, 17.5, 7.5

25, 8.75, 3.75

⇒ With respect to the differential amplifier configuration shown below, the differential gain A

273.63

213.63

113.63

233.63

⇒ At resonance the network function magnitude will be

⇒ Consider the following statements:

1 only

2 only

1 and 2

2 and 3

⇒ For a BJT, under the saturation region.

I

I

I

I

⇒

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

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

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

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

⇒ Figure represen

NPN transistor

PNP transistor

Zener diode

Power diode

⇒ Which of the following expressions is invalid in Fortran?

IA + IB

IB * IC / ID

IA * B

- K * I + J

⇒ In the given fi

42737

42739

2

1

⇒ A quiescent state of a transistor implies

zero bias

no output

no distortion

no input signal

⇒ The op-amp used in nonlinear mode is

integrators

active filters

Schmitt triggers

instrumentation amplifiers

⇒ Which synthesis procedure requires the use of mutual inductance?

Foster's synthesis

Cauer synthesis

Bott-Duffin synthesis

Brune's synthesis

⇒

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

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

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

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

⇒ The characteristic impedance of coaxial cable is about

1000 ohm

500 ohm

250 ohm

75 ohm

⇒ A series circuit has fixed resistance and variable reactance. The impedance locus will be a straight line parallel to Y-axis.

TRUE

FALSE

⇒ No load d.c. output will be least in case of

half wave rectifier

full wave rectifier

bridge rectifier

three phase full wave rectifier

⇒ The depletion layer in a reverse biased

electrons

holes

both electrons and holes

immobile ions

⇒ The eigen values of a skew symmetric matrix are

always zero

always pure imaginary

either zero or pure imaginary

always real

⇒ The kinetic energy of photoelectrons emitted by a photo sensitive surface depends on

intensity of the incident radiation

wavelength of the incident radiation

surface conditions of the surface

angle of incidence of radiation

⇒ P flag is for parity.

TRUE

FALSE

⇒ Which of the following conditional statements is not valid in Pascal?

If A > = B then B : = C + D + X

If (N = 45) THEN X : = X + 2 ELSEX : = 0

If A < = B then A : = C * D

If (A > = B) X : Y else X : = Z

⇒ In a bipolar transistor which current is largest

collector current

base current

emitter current

base current or emitter current

⇒ "Micro-program" is

the name of the source program in microcomputer

the set of instructions indicating the primitive operations in 1 system

the general name of 'MACRO's' in assembly language programming

the name of programs of very small size

⇒ The pole zero plot of the given figure is

non-minimum phase function

minimum phase function

all pass function

either (b) or (c)

⇒ The decimal equivalent of binary 1101.11 is

9.75

13.75

11.5

11.75

⇒ The configuration of figure

Hartley oscillator

Precision Integrator

Wienbridge oscillator

Butterworth high pass filter

⇒ An AND gate has two inputs A and B and one inhibit input S. Out of total 8 input states, output is 1 in

1 state

2 states

3 states

4 states

⇒ The amplitude modulated wave is given by __________

*e*= 25(1 + 0.7 cos 5000*t*- 0.3 cos 1000*t*) x sin 5 x 10^{6}*t*The amplitude of carrier and sideband frequencies in magnitudes are25, 0.7, 0.3

25, 0.7, - 0.3

24, 17.5, 7.5

25, 8.75, 3.75

⇒ With respect to the differential amplifier configuration shown below, the differential gain A

_{d}will273.63

213.63

113.63

233.63

⇒ At resonance the network function magnitude will be

*k*/*a**k*/*b**c**k*/*a*+*b*⇒ Consider the following statements:

- Strictly speaking C supports 1-dimensional arrays only.
- An array element may be an array by itself.
- Array elements need not occupy contiguous memory locations.

1 only

2 only

1 and 2

2 and 3

⇒ For a BJT, under the saturation region.

I

_{C}= βI_{B}I

_{C}> βI_{B}I

_{C}is independent of other parameterI

_{C}< βI_{B}⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | RC coupled amplifier | 1. | Very low drift |

B. | Tuned amplifier | 2. | Flat frequency response from zero frequency onwards |

C. | Chopper stabilized amplifier | 3. | Flat frequency response with upper and lower cut off frequency |

D. | DC amplifier | 4. | Peak in gain frequency response |

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

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

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

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

⇒ Figure represen

NPN transistor

PNP transistor

Zener diode

Power diode

⇒ Which of the following expressions is invalid in Fortran?

IA + IB

IB * IC / ID

IA * B

- K * I + J

⇒ In the given fi

42737

42739

2

1

⇒ A quiescent state of a transistor implies

zero bias

no output

no distortion

no input signal

⇒ The op-amp used in nonlinear mode is

integrators

active filters

Schmitt triggers

instrumentation amplifiers

⇒ Which synthesis procedure requires the use of mutual inductance?

Foster's synthesis

Cauer synthesis

Bott-Duffin synthesis

Brune's synthesis

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | p type semiconductor | 1. | silicon |

B. | n type semiconductor | 2. | holes are majority carriers |

C. | Intrinsic semiconductor | 3. | electrons are majority carriers |

D. | Tungsten | 4. | is a metal |

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

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

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

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

⇒ The characteristic impedance of coaxial cable is about

1000 ohm

500 ohm

250 ohm

75 ohm

⇒ A series circuit has fixed resistance and variable reactance. The impedance locus will be a straight line parallel to Y-axis.

TRUE

FALSE

⇒ No load d.c. output will be least in case of

half wave rectifier

full wave rectifier

bridge rectifier

three phase full wave rectifier

⇒ The depletion layer in a reverse biased

*p*-*n*junction is due to the presence ofelectrons

holes

both electrons and holes

immobile ions

⇒ The eigen values of a skew symmetric matrix are

always zero

always pure imaginary

either zero or pure imaginary

always real

⇒ The kinetic energy of photoelectrons emitted by a photo sensitive surface depends on

intensity of the incident radiation

wavelength of the incident radiation

surface conditions of the surface

angle of incidence of radiation

⇒ P flag is for parity.

TRUE

FALSE

⇒ Which of the following conditional statements is not valid in Pascal?

If A > = B then B : = C + D + X

If (N = 45) THEN X : = X + 2 ELSEX : = 0

If A < = B then A : = C * D

If (A > = B) X : Y else X : = Z

⇒ In a bipolar transistor which current is largest

collector current

base current

emitter current

base current or emitter current

⇒ "Micro-program" is

the name of the source program in microcomputer

the set of instructions indicating the primitive operations in 1 system

the general name of 'MACRO's' in assembly language programming

the name of programs of very small size

⇒ The pole zero plot of the given figure is

non-minimum phase function

minimum phase function

all pass function

either (b) or (c)

⇒ The decimal equivalent of binary 1101.11 is

9.75

13.75

11.5

11.75

⇒ The configuration of figure

Hartley oscillator

Precision Integrator

Wienbridge oscillator

Butterworth high pass filter