An amplitude-modulated wave is represented by the expression v_ m =5(1+0.6 6280 t) (211…

Physics · JEE Main · NTA Exams — Alternating Current & Electromagnetic Waves

An amplitude-modulated wave is represented by the expression \(v_{m}=5(1+0.6 \cos 6280 t)\)\(\sin \left(211 \times 10^{4} t\right)\) volts. The minimum and maximum amplitudes of the amplitude modulated wave are, respectively:
  1. 5V, 8V
  2. \(\frac{3}{2} V, 5 V\)
  3. \(\frac{5}{2} V, 8 V\)
  4. 3V, 5V

Answer

(C) 5 2 V, 8 V

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