Question is ⇒ Troposphere is the upper part of the Earth's atmosphere which absorbs large quantities of Sun's radiations., Options are ⇒ (A) TRUE, (B) FALSE, (C) , (D) , (E) , Leave your comments or Download question paper.

Question is ⇒ Troposphere is the upper part of the Earth's atmosphere which absorbs large quantities of Sun's radiations., Options are ⇒ (A) TRUE, (B) FALSE, (C) , (D) , (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Troposphere is the upper part of the Earth's atmosphere which absorbs large quantities of Sun's radiations.
A.	TRUE [Wrong Answer]
B.	FALSE [Correct Answer]
View Answer 1 -1 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 :

⇒ In a PCM system, if we increase the quantization levels from 2 to 8, how do the relative bandwidth requirements vary?
Get doubled
Get tripled
Remains same
Become eight times

⇒ To measure an emf by dc potentiometer it is necessary to standardise the potentiometer with the help of a standard cell.
TRUE
FALSE

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

⇒ Consider the following logical IF statement in Fortran 77 IF (SALT - PEPPER) 11, 11, 13
IF (SALT - PEPPER) 13, 11, 11
IF (SALT - PEPPER) 13, 13, 11
IF (SALT - PEPPER) 11, 13, 13

⇒ For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)
is -90°
is +90°
depends on the damping factor
none of the above

⇒ An antisymmetric filter having odd number of coefficient may have a performance as
low pass
high pass
band pass
all pass

⇒ Which one of the following compounds is widely used for making ferrites?
FeO
CuO
MgO
Fe₂O₃

⇒ Colour picture tube needs higher anode voltage and needs larger beam and cathode currents than monochrome tube because
it is bigger in size
it has higher level of illumination
the tube has to illuminate three phosphors simultaneously
the tube has lower efficiency because of aperture mask

⇒ For an RC admittance function
the lowest critical frequency is a zero
the highest critical frequency is a pole
the lowest critical frequency is zero and the highest critical frequency is a pole
the lowest critical frequency is a pole

⇒ In a reflex klystron oscillator, repeller electrode is at
low positive potential
high positive potential
negative potential
zero potential

⇒ Which of the following statement about modulation is correct?
It avoid use of antennas
It reduces bandwidth
It ensures transmission over long distances
It combines different transmissions

⇒ For the circuit shown in the figure, the time constant RC = 1 ms. The input voltage is V₁(t) = 2 sin 10³ t. The output voltage V₀(t) is equa
sin (10³ t - 45°)
sin (10³ t + 45°)
sin (10³ t - 53°)
sin (10³ t + 53°)

⇒ If X = 1 in the logic equation [X + Z { Y + (Z + X Y)}] { X + Z (X + Y)} = 1, then
Y = Z
Y = Z
Z = 1
Z = 0

⇒ The MOSFET is almost ideal as a switching device because
it has linear characteristics
it works progressively
it consumes low power
it has longer life

⇒ 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

⇒ Radiation pyrometer is used to measure temperature in the range of
-200 to 500° C
0 to 500° C
500 to 1200° C
1200 to 2500° C

⇒ For the amplifier in figure, β = 800. The mid-band voltage gain V₀/V_{i0
< 1
≈ 1
800}

⇒ Figure of merit is always unity in
AM
SSB-SC
FM
All

⇒ Symbol shown in figure represen
Enhancement only N-channel MOSFET
UJT with p-type base
N-channel DMOSFET with internal protection
Phototransistor

⇒ Characteristic wave impedance is
ε/μ
(ε/μ)^1/2
E_x/H_y
H_y/E_x

⇒ A directional coupler is used to determine
r_v
r_v and VSWR
L and C
wave velocity

⇒ Which is correct for a transfer function?
The poles and zero must be complex
If the poles and zeros are complex or imaginary, they must be conjugate
If the poles and zeros are complex they must be simple
If a zero is imaginary, it must be simple

⇒

Assertion (A): In class C amplifier the efficiency is more than that for other classes of amplifiers

Reason (R): In class C amplifier we can get high efficiency over a wideband

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct

⇒ In the amplifier circuit of figure h_fe = 100 and h_ie = 1000 Ω. The voltage gain of amplifier is a
0.33
0.5
0.66
1

⇒ In Z_RC(s) has a pole at s = 0, the first element in second Foster realization is
R
C
R and C in series
R and C in parallel

⇒ Two phasors having rms values V₁ and V₂ which are added to give a phasor having rms value V₃. V₃ is maximum if phase angle between V₁ and V₂ is
90°
180°
270°
360°

⇒ An electric heater is controlled by thyristors through on-off control. If a = 0.4, the heating is
16% maximum
40% of maximum
60% of maximum
84% of maximum

⇒ A remote control of TV uses a 10 bit word. The maximum number of total commands it can transmit is
64
256
512
1024

⇒ Examine the following statements

A small size hydraulic actuator can develop good torque.
It is easy to maintain a hydraulic system leak proof.
Both linear and rotatary hydraulic actuators are available.
Hydraulic power is more easily available than electric power.

Which of the above statements are correct?
all
1 and 2 only
1 and 3 only
2, 3 and 4 only

⇒ In a JFET
the source gate junction is forward biased and gate drain junction is reverse biased
both the junctions are forward biased
both the junctions are reverse biased
the source gate junction is reverse biased and gate drain junction is forward biased