A message signal of frequency ωmis superposed on a carrier wave of frequency ωc to get an Amplitude Modulated Wave (AM). The frequency of the AM wave will be
A message signal of frequency ωmis superposed on a carrier wave of frequency ωc to get an Amplitude Modulated Wave (AM). The frequency of the AM wave will be
This is a Multiple Choice Questions as classified in NCERT Exemplar
Answer- b
Explanation- frequency of career wave and frequency of amplitude modulated wave is same which is wc .
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According to question, we can write
Increment in height of tower = h2 – h1 = 500 – 125 = 375 m
Low pass filter will allow low frequency signal to pass while high pass filter allow high frequency to pass through
µ = A? /A? = 0.5 {A? = 20 volt, A? = 40 volt}
m (t) = A? sin ω? t {ω? = 2π×10? }
c (t) = A? sin ω? t {ω? = 2π×10×10³}
C? (t) = (A? + A? sin ω? t) sin ω? t ⇒ A? {1+ µsin ω? t} sin ω? t
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Physics NCERT Exemplar Solutions Class 12th Chapter Fifteen 2025
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