Physics · 2019
JEE Main · 10 April 2019, Shift 1 · Q28
A message signal of frequency 100 MHz and peak voltage 100 V is used to execute amplitude modulation on a carrier wave of frequency 300 GHz and peak…
A message signal of frequency $\displaystyle 100$ MHz and peak voltage $\displaystyle 100$ V is used to execute amplitude modulation on a carrier wave of frequency $\displaystyle 300$ GHz and peak voltage $\displaystyle 400$ V . The modulation index and difference between the two side band frequencies are:
Official answer
(3)
$\displaystyle 0.25 ; 2 \times 10^8 \mathrm{~Hz}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.