MereTeacher

JEE • NEET • FOUNDATION

JEE · NEET Previous Year Question

$In communication system, the process of superimposing a low frequency signal on a high frequency wave is known as$

Topic: JEE PYQ

Answer: C. Full step-by-step solution below.

A $Repeater$
B $Attenuation$
C $Modulation$
D $Demodulation$

Correct answer: C

Solution

(c) : Modulation is a process of superimposing a low frequency signal on a high frequency wave.

More Electromagnetic Waves PYQs

$Two coherent sources of light interfere and produce fringe pattern on a screen. For central maximum, the phase difference between\dots$
$The ratio of average electric energy density and total average energy density of electromagnetic wave is:$
$The oscillating magnetic field in a plane electromagnetic wave is given by\dots$
$The ratio of contributions made by the electric field and magnetic field components, to the intensity of an electromagnetic wave i\dots$
$In an electromagnetic wave in free space the root mean square value of the electric field is E_{rms} = 6 Vm^{- 1} \dots$