COMEDK2021PhysicsCommunication System
In detector, output circuit consists of R=10 k and C=100 pF . The frequency of carrier signal which it can detect is
Options
- A>>1 MHz
- B0.1 kHz
- C>>1 GHz
- D10³ ~Hz
Correct answer
A. >>1 MHz
Step-by-step solution
R = 10 , k = 10^4 , , C = 100 , pF = 10⁻¹⁰ , F RC = 10^4 10⁻¹⁰ = 10⁻⁶ , s For successful demodulation: RC T_c f_c 1 RC f_c 1 10⁻⁶ = 10^6 , Hz = 1 , MHz Correct option: (1)