The frequency of a continuous time signal x (t) changes on transformation from x (t) to x (α t), α > 0 by a factor
A. α
B. 1/α
C. α2
D. α
Answer:A
The frequency of a continuous time signal x (t) changes on transformation from x (t) to x (α t), α > 0 by a factor
A. α B. 1/α C. α2 D. α
Explanation: x(t)->x(αt), α > 0