Question is ⇒ Isotropic radiator is one that radiates energy, Options are ⇒ (A) uniformly in all direction, (B) inside a hollow sphere, (C) in a well defined isotropic direction, (D) none of the above, (E) , Leave your comments or Download question paper.

Question is ⇒ Isotropic radiator is one that radiates energy, Options are ⇒ (A) uniformly in all direction, (B) inside a hollow sphere, (C) in a well defined isotropic direction, (D) none of the above, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Isotropic radiator is one that radiates energy
A.	uniformly in all direction [Correct Answer]
B.	inside a hollow sphere [Wrong Answer]
C.	in a well defined isotropic direction [Wrong Answer]
D.	none of the above [Wrong Answer]
View Answer 1 -2 Explanation:- Answer : A 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 :

⇒ Which of the following conditions must be satisfied for a transistor to remain under saturation?

Its collector to base junction should be under forward bias.
Its collector to base junction should be under reverse bias.
Its emitter to base junction should be under reverse bias.
Its emitter to base junction should be under forward bias.

Select the correct answer from the codes given below:
1 and 2
1 and 3
2 and 3
1 and 4

⇒ For the K map in the given figure, the simplified expressio
x_l x₂ x₄ + x₂ x₄ + x₁ x₃
x₂ x₄ + x₂ x₄ + x₁ x₃
x₁ x₂ x₄ + x_l x₂ + x₃ x₄ + x₂x₄
x₁ x₂ + x₂ x₃ + x₃x₄

⇒ To ensure that a zener diode does not get destroyed
the applied voltage should not exceed breakdown voltage
the current should not exceed rated current
the current should be less than magnitude of barrier potential
both (a) and (b)

⇒ The resistance in the circuit of the moving coil of a dynamometer wattmeter should be
very low
low
high
almost zero

⇒ If the intrinsic resistivity at 300°K is 0.37 ohm-m and the electron and hole mobilities at 300°K are 0.28 and 0.15 m²/volt-sec, then the intrinsic carrier concentration of Germanium is __________ .
2.92 x 10¹⁹/m³
2.92 x 10^-19/m³
1.92 x 10¹⁹/m³
3.92 x 10¹⁹/m³

⇒ The effect of adding poles and zeros can be determined quickly by
Nichols chart
Nyquist plot
Bode plot
Root locus

⇒ A parity detector can detect
single error only
single error or odd number of errors
two errors
single or two errors

⇒ Consider the following statements about diamagnetic material and diamagnetism.

The materials have negative magnetic susceptibility.
At very low temperature diamagnetic materials.

Which of the statements given above is/are correct?
1 only
2 only
Both 1 and 2
neither 1 nor 2

⇒ With a JK master-slave flip-flop the master is clocked when the clock is __________ , and the slave is triggered when the clock is __________ .
low, low
high, low
low, high
high, high

⇒ How many input-output ports can be accessed by direct method of 8085 μp?
8
256
32 K
64 K

⇒ Which one of the following is correct? Energy of a power signal is
finite
zero
infinite
between 1 and 2

⇒ A static excitation system uses
transformer and thyristors
transformer and ac exciter
dc exciter and ac exciter
transformer and dc exciter

⇒ A frequency doubler has an FM signal input at 13 MHz with a deviation of 5 kHz. The output frequency of the carrier will be
26 kHz
260 kHz
26 MHz
260 MHz

⇒ If the plate supply voltage for a plate modulated class C amplifier is E volts, the maximum plate-cathode voltage could be almost as high as
E
E/2
2E
4E

⇒ The following circuit diagram resembl
logic 0
logic 1
f(A, B, C) = Σm(0, 1, 4, 6, 7)
none

⇒ In an n-type silicon crystal at room temperature, which of the following can have a concentration of 4 x 10¹⁹ cm^-3?
Silicon atoms
Holes
Dopant atoms
Valence electrons

⇒ A voltage V_BB is applied across the terminals of a UJT. The emitter voltage at peak point is
hV_BB
(h + 1) V_BB
hV_BB + V_D
V_D

⇒

Assertion (A): The part of root locus on the real axis is not dependent on the poles and zeros which are not on the real axis.

Reason (R): Poles and zeros which are not on the real axis occur in conjugate pairs

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

⇒ For aeroplane and navigation frequency band is
VLF
UHF
VHF
EHF

⇒ From the noise point of view, bandwidth should
be large
not be too large
should be as large as possible
should be infinite

⇒ Magnetic flux can be measured by
capacitive pick up
inductive pick up
resistive pick up
hall effect pick up

⇒ In the following astable multivibrator circuit, which properties of v₀(t) depends on R_{2Only the frequency
Only the amplitude
Both the amplitude
Neither the amplitude nor the frequency}

⇒ In a digital circuit, a clock is a
crystal type
multivibrator
flip-flop
free running multivibrator

⇒ Which of the following theorems can be conveniently used to find power consumed in 10 Ω resistor in fig
Thevenin theorem
Maximum power transfer theorem
Millman's theorem
Superposition theorem

⇒

Match the following:

	List I (Theorems)		List II (Property of Network)
A.	Reciprocity	1.	Impedance matching
B.	Tellegen's	2.	Bilateral
C.	Superposition	3.	∑ V_jk I_jk = 0
D.	Maximum power transfer	4.	Linear
		5.	Non linear

A-1, B-2, C-3, D-4
A-1, B-2, C-3, D-5
A-2, B-3, C-4, D-1
A-2, B-3, C-5, D-1

⇒ According to Barkhausen criteria in order to sustain the oscillations
loop gain of the circuit must be negligible
loop gain of the circuit must be equal to unity
the phase shift around the circuit must be 180°
none of the above

⇒ Which type of fading causes serious distortion of modulated signal?
Selective fading
Interference fading
Absorption fading
Polarization fading

⇒ What will be the propagation constant at 10 MHz?
3.4 radians/km
34.4 radians/km
344 radians/km
3440 radians/km

⇒ Class A and Class B power amplifiers predominate at
audio frequencies
radio frequencies
all frequencies
audio and radio frequency

⇒ For TE or TM modes of propagation in bounded media, the phase velocity is
independent of frequency
is a linear function of frequency
is a non-linear function of frequency
can be frequency dependent or frequency independent on the source