1
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
A signal $${e^{ - \alpha t}}\,\sin \left( {\omega t} \right)$$ is the input to a real Linear Time Invariant system. Given $$K$$ and $$\phi $$ are constants, the output of the system will be of the form $$K{e^{ - \beta t}}\,\sin \,\left( {\upsilon t + \phi } \right)$$ where
A
$$\beta $$ need not be equal to $$\alpha $$ but $$\upsilon $$ equal to
B
$$\upsilon $$ need not be equal to $$\omega $$ but $$\beta $$ equal to $$\alpha $$
C
$$\beta $$ equal to $$\alpha $$ and $$\upsilon $$ equal to $$\omega $$
D
$$\beta $$ need not be equal to $$\alpha $$ and $$\upsilon $$ need not be equal to $$\omega $$
2
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
A signal $${e^{ - \alpha t}}\,\sin \left( {\omega t} \right)$$ is the input to a real Linear Time Invariant system. Given $$K$$ and $$\phi $$ are constants, the output of the system will be of the form $$K{e^{ - \beta t}}\,\sin \,\left( {\upsilon t + \phi } \right)$$ where
A
$$\beta $$ need not be equal to $$\alpha $$ but $$\upsilon $$ equal to
B
$$\upsilon $$ need not be equal to $$\omega $$ but $$\beta $$ equal to $$\alpha $$
C
$$\beta $$ equal to $$\alpha $$ and $$\upsilon $$ equal to $$\omega $$
D
$$\beta $$ need not be equal to $$\alpha $$ and $$\upsilon $$ need not be equal to $$\omega $$
3
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
The impulse response of a causal linear time-invariant system is given as $$h(t)$$. Now consider the following two statements:

Statement-$$\left( {\rm I} \right)$$: Principle of superposition holds
Statement-$$\left( {\rm II} \right)$$: $$h\left( t \right) = 0$$ for $$t < 0$$

Which one of the following statements is correct?

A
Statement $$\left( {\rm I} \right)$$ is correct and Statement $$\left( {\rm II} \right)$$ is wrong
B
Statement $$\left( {\rm II} \right)$$ is correct and Statement $$\left( {\rm I} \right)$$ is wrong
C
Both Statement $$\left( {\rm I} \right)$$ and Statement $$\left( {\rm II} \right)$$ are wrong
D
Both Statement $$\left( {\rm I} \right)$$ and Statement $$\left( {\rm II} \right)$$ are correct
4
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The transfer function of a linear time invariant system is given as $$G\left( s \right) = {1 \over {{s^2} + 3s + 2}}.$$ The steady state value of the output of this system for a unit impulse input applied at time instant $$t=1$$ will be
A
$$0$$
B
$$0.5$$
C
$$1$$
D
$$2$$