Quiz on Amplitude Modulation

In Amplitude modulation,

• Amplitude of the carrier signal constant

• Phase of the carrier signal constant

• Frequency of the carrier signal constant

Modulation index is defined as

• ratio of message signal frequency to carrier signal amplitude

• ratio of message signal amplitude to carrier signal frequency

• ratio of message signal amplitude to carrier signal amplitude

• ratio of message signal frequency to carrier signal frequency

Amplitude Modulation is also known as

Bandwidth of Amplitude Modulation is

• 2 fm

• fm + fc

• 2 fc

• fm-fc

For critical modulation, modulation index will be

• m > 1

• m=1

• m< 1

Amplitude Modulated wave consists of

• carrier signal

• lower side band

• upper side band

• all the three

What are the two methods of DSBSC detection or demodulation?

Ring modulator is the scheme for generation of

• DSB SC

• DSB FC

• SSB SC

• None of the above

Envelop demodulator is the method of detecting

• DSB FC

• DSB SC

• SSB SC

• All of the above

QCM is method of multiplexing

• Two DSB SC signal s

• Two DSB FC signals

• Two SSB signals

• All of the above