A base-band signal can be up-converted using

a-base-band-signal-can-be-up-converted-using

A base-band signal can be up-converted using
A. Sine wave
B. Cosine wave
C. Filtering
D. None of the mentioned
The correct answer is B. Cosine wave

A base-band signal can be up-converted to band-pass filter by applying cosine wave.