Physics · 2021
JEE Main · 26 August 2021, Shift 1 · Q28
An amplitude modulated wave is represented by C_m ( t )=10(1+0.2 cos 12560 t ) sin (111 × 10^4 t ) volts. The modulating frequency in kHz will be \ \…
An amplitude modulated wave is represented by $\displaystyle \mathrm{C}_{\mathrm{m}}(\mathrm{t})=10(1+0.2 \cos 12560 \mathrm{t}) \sin \left(111 \times 10^4 \mathrm{t}\right)$ volts. The modulating frequency in kHz will be \_\_\_\_.
Official answer
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