Question is ⇒ A wave is frequency modulated with an index of 0.1 and its frequency is multiplied by 8 times, the modulation index is, Options are ⇒ (A) not changed, (B) decreased 8 times, (C) increased 4 times, (D) increased 8 times, (E) , Leave your comments or Download question paper.

Question is ⇒ A wave is frequency modulated with an index of 0.1 and its frequency is multiplied by 8 times, the modulation index is, Options are ⇒ (A) not changed, (B) decreased 8 times, (C) increased 4 times, (D) increased 8 times, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A wave is frequency modulated with an index of 0.1 and its frequency is multiplied by 8 times, the modulation index is
A.	not changed [Correct Answer]
B.	decreased 8 times [Wrong Answer]
C.	increased 4 times [Wrong Answer]
D.	increased 8 times [Wrong Answer]
View Answer 1 -1 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 :

⇒ The phase angle curve of G(jω) H(jω) can be drawn
by adding the phase angle curves of individual factors
by subtracting the phase angle curves of individual factors
by multiplying the phase angle curves of individual factors
by dividing the phase angle curves of individual factors

⇒ A balun transformer gives an impedance transformation of
0.167361111111111
0.0840277777777778
0.0444444444444444
0.0430555555555556

⇒ What is the frequency of pulse at the points a, b, c in the circ
3 MHz
7.8 KHz
10 KHz
1 MHz

⇒ In EPROM integrated dose is defined as
UV light intensity x exposure time in seconds
UV light intensity / exposure time in seconds
exposure time in seconds / UV light intensity
none of the above

⇒ TE₀₁ mode of propagation of electromagnetic energy
is merely the TE₁₀ mode rotated 90°
is merely the TE₁₀ mode rotated 180°
is the same as TE₁₀ mode
either (b) or (c)

⇒ Diffraction of electromagnetic wave
is caused by reflection from the ground
may occur around the edge of a sharp obstacle
arises only with spherical wavefronts
none of these

⇒ The voltage induced in a loop of wire rotating in a strong and steady magnetic field is
pulsating dc
dc
rectified ac
ac

⇒ In a ripple counter,
whenever a flip flop sets to 1, the next higher FF toggles
whenever a flip flop sets to 0, the next higher FF remains unchanged
whenever a flip flop sets to 1, the next higher FF faces race condition
whenever a flip flop sets to 0, the next higher FF faces race condition

⇒ In n channel JFET, the gate voltage is made more negative
the channel width will increase
the channel width will decrease
the channel width and drain current will decrease
the channel width will decrease and drain current will increase

⇒ A carrier is simultaneously modulated by two sine waves having modulation indices of 0.4 and 0.3. The total modulation index will be
0.1
0.7
0.5
0.35

⇒ A coil is connected across a 200 V, 50 Hz supply and takes a current of 10 A. The loss in the coil is 1000 W. The impedance and resistance of the coil are
10 Ω, 8 Ω
15 Ω, 8 Ω
20 Ω, 10 Ω
30 Ω, 15 Ω

⇒ A channel has a SNR of 7 and BW 4 kHz. Keeping the channel capacity (BPS) same, the BW is reduced to accommodate more channels. The SNR
decreases
increases
remains same
partially affected

⇒

Assertion (A): For a dielectric, P = ∈₀(∈_r - 1) E.

Reason (R): Dipole moment per unit volume is called polarization of dielectric.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true

⇒ A + A . B =
B
A . B
A
A or B

⇒ If 4 in binary system is 100 then 8 will be
10
100
111
1000

⇒ In figure, the steady state current through 1H inductanc
Zero
0.125
0.208333333333333
0.25

⇒ The value of susceptibility in case of vacuum is taken as
zero
0.5
unity
infinity

⇒ Which of the following is a better recording medium?
Ferric oxide
Ferrous oxide
Chromium di oxide
Either (a) or (b)

⇒ In a carbon-zinc cell the function of the depolarizer is that
it synthesizes the decomposed electrolyte
it converts the produced hydrogen into water
it absorbs the oxygen produced in the cell
it prevents the fast chemical action on the zinc container

⇒ Consider the following functions

It detects the AM video carrier IF so as to produce the video signal
It produces and separates out the inter carrier sound IF of 5.5 MHz
It amplifies the video signal
It amplifies the audio signal

The video detector in a colour TV performs which of the above functions
1, 2 and 3
1, 2, 3 and 4
1 and 2
1, 2 and 4

⇒ A tie set schedule shows
incidence of branches to nodes
incidence of branches to loops
incidence of nodes to loops
none of the above

⇒ For BJT transistor. The maximum power dissipation is specified as 350 mW if ambient temperature is 25°C. If ambient temperature is 60°C the maximum power dissipation should be limited to about
100 mW
250 mW
450 mW
600 mW

⇒ In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to
first Bohr radius
second Bohr radius
third Bohr radius
either first or second Bohr radius

⇒ Spot the odd one out
aluminium
silver
porcelain
copper

⇒ In a modem digital computer, a subtractor in normally not used because
subtractors are very expensive
the design of a subtractor is very complex
the adder is geared for doing subtraction
most of the programs do not require subtraction

⇒ The resonance frequency is
ω_r = a
ω_r = b
ω_r = k
ω_r = ba

⇒ If A = 131 ± 4 and B = 106 ± 4, the percentage range of doubt in A - B is
0.04
0.08
0.16
0.32

⇒ An ideal op-amp has zero slew rate.
TRUE
FALSE

⇒ An electrically neutral semiconductor has
no free charges
no majority carriers
no minority carriers
equal number of positive and negative charges

⇒ Following figure is a signal conditioning Amplifier, changes gain depending upon the polarity of V_s. What will be circuit voltage gain for + V_s and for - V_s if D₂ is id
A_V = -R₃/R₁
R₃/R₁
R₁/R₃
1 + R₃/R₁