COMMUNICATION SYSTEMS QUIZ

The wavelength transmitted through it

The reflected colour

Reflected colour for opaque object and wavelength transmitted through it for transparent objects

None of these

High power output per transistor

The lower modulating power requirement

Better linearity

Improved efficiency

Harmonic devices

Non-linear devices

Linear devices

Class C amplifiers

Upto 250 bps

Upto 600 bps

Upto 100 bps

Upto 400 bps

200 and 1.01

200 and 10.01

200 and 100.1

200 and 200

Produce balanced modulation of a carrier wave

Limit noise picked by a receiver

Suppress carrier signal in order to create a single-sideband or double sideband

Produce 100% modulation

It avoids phase distortion at low frequencies

It reduces the bandwidth requirement to half

None of these

It results in better reception

Gets halved

Remains unchanged

Gets increased by 50 percent

Gets doubled

Is more than that of dipole

Is the same as that of dipole

Is less than that of dipole

May be equal, more or less than that of dipole

Armstrong modulator

Reactance bipolar transistor

Reactance FET modulator

Varactor diode modulator