Physics · 2019
JEE Main · 11 January 2019, Shift 2 · Q28
An amplitude modulated signal is plotted below: Which one of the following best describes the above signal?
An amplitude modulated signal is plotted below:
Which one of the following best describes the above signal ?
Which one of the following best describes the above signal ?Official answer
(4)
$\displaystyle \left(9+\sin \left(2 \pi \times 10^4 \mathrm{t}\right)\right) \sin \left(2.5 \pi \times 10^5 \mathrm{t}\right) \mathrm{V}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.