Question

Match the following :

a)Amplitude Modulation	e)Amplitude and Angular frequency remains constant
b)Frequency Modulation	f)Digital Transmission
c)Phase Modulation	g)Noise Creeps in
d) Pulse	h)Stereophonic Transmission

• A. a - g; b - h; c- e; d - f
• B. a - e; b - f; c - g; d - h
• C. a - f; b - e; c- g; d - f
• D. a - h; b - g; c - e; d - f

Answer 1

Answer: (A)

a - g; b - h; c- e; d - f

In amplitude modulation, there is more probability of added noise. Stereophonic transmission is multi directional transmission, which can be achieved by frequency modulation. in phase modulation only the phase is changed, thus, amplitude and angular frequency are changed. Pulse has only two values, high or low respectively, which is digital.