Jee Main
Communication Systems
JEE Main 2021 (Online) 27th July Morning Shift
INTEGER+4 / -12021
The amplitude of upper and lower side bands of A.M. wave where a carrier signal with frequency 11.21 MHz, peak voltage 15 V is amplitude modulated by a 7.7 kHz sine wave of 5V amplitude are \({a \over {10}}V\) and \({b \over {10}}V\) respectively. Then the value of \({a \over b}\) is ____________.