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1
GATE ECE 2001
MCQ (More than One Correct Answer)
+2
-0
The PSD and the power of a signal g(t) are, respectively, Sg($$\omega$$) and Pg. The PSD and the power of the signal ag(t) are, respectively
A
$$a^2S_g (\omega)\; and\; a^2P_g$$
B
$$a^2S_g (\omega)\; and\; aP_g$$
C
$$aS_g (\omega)\; and\; a^2P_g$$
D
$$aS_g (\omega)\; and\; aP_g$$
2
GATE ECE 1992
MCQ (More than One Correct Answer)
+2
-0
Which of the following signals is/are periodic?
A
S (t) = cos2t + cos3t + cos5t
B
S (t) = exp ( j8$$\pi$$t )
C
S (t) = exp (−7t ) sin10$$\pi$$t
D
S (t) = cos2t cos 4t
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