Question
Reason (R): In AM, frequency of side band = frequency carrier ± frequency of modulating wave.
a.
Both A and R are correct and R is correct explanation of A
b.
Both A and R are correct but R is not correct explanation of A
c.
A is correct but R is wrong
d.
A is wrong but R is correct
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Assertion (A): In AM the amplitude of carrier is made proportional to the instantaneous amplitude of modulating wave Reason (R): In AM, frequency of side band = frequency...
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Pressing a key on telephone set generates two frequencies. The basis for selection of these frequencies is
View solution
Q. Which of the following oscillator is not in FM?
View solution
Q. The number of spectral component of impulse wave is
View solution
Q. Assertion (A): If a carrier is modulated by three sine waves and m₁, m₂, m₃ are the modulation indices, the total modulation index mt is
mt = (m₁² + m₂² + m₃²)^0.5
Reason (R): An AM, higher the level of modulation, lower is the audio power required to produce modulation.
View solution
Q. If M (jω) = £[m(t)] where £ denotes Fourier transform, then £[m(t) cos ωct] =
View solution
Q. When a wave reaches the open circuited end of a line
View solution
Q. Some features of RF stage in good radio receivers is
1. It increases sensitivity by providing amplification to RF signal
2. It eliminates image frequency interference
3. It increases selectivity
4. It reduces noise level
Which of the above are true?
View solution
Q. During amplitude modulation, the phase angle of the modulating voltage changes by
View solution
Q. The image frequency of a superheterodyne receiver is
View solution
Q. Image frequency rejection mainly depends upon
View solution
Q. Which of the following is most likely to be found in an SSB transmitter?
View solution
Q. Which one of the following frequency bands is allocated by ITU (International Telecomm. Union) for DBS - (Direct Broadcast service) also referred as DTH - (Direct to Home service)?
View solution
Q. FM broadcast lies in which band?
View solution
Q. Which colour picture tube uses slotted aperture mask?
View solution
Q. If the circumference of a spherical target is between 1 to 10 wavelength in a radar system, the situation is called
View solution
Q. The complete video signal consists of
View solution
Q. Transit time is considered as significant at
View solution
Q. In a colour TV receiver, AGC adjusts the gain of
View solution
Q. In pulse transmitter the ratio of time on to time off is called
View solution
Q. A MASER is a
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
