Explore topic-wise MCQs in Signals & Systems.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Signals & Systems knowledge and support exam preparation. Choose a topic below to get started.

1.

Find the Fourier transform of sinc(t).

A. G<sub> </sub> ( )
B. G<sub>2 </sub> ( )
C. (G_{ frac{ }{2}} ) ( )
D. G<sub> </sub> (- )
Answer» C. (G_{ frac{ }{2}} ) ( )
Discussion
2.

Find the Fourier transform of e-2t u(t-1).

A. (e^{-2} [e^{-j } frac{1}{2-j }] )
B. (e^2 [e^{-j } frac{1}{2-j }] )
C. (e^{-2} [e^{j } frac{1}{2-j }] )
D. (e^{-2} [e^{-j } frac{1}{2+j }] )
Answer» E.
Discussion
3.

Find the Fourier transform of ( frac{1}{a+jt} ).

A. 2 e<sup>a </sup> u( )
B. 2 e<sup>a </sup> u(- )
C. 2 e<sup>-a </sup> u( )
D. 2 e<sup>-a </sup> u(- )
Answer» C. 2 e<sup>-a </sup> u( )
Discussion
4.

Find the Fourier transform of x(t) = f(t 2) + f(t + 2).

A. 2F( )cos u20612
B. F( )cos u20612
C. 2F( )sin u20612
D. F( )sin u20612
Answer» B. F( )cos u20612
Discussion
5.

Find the Fourier transform of u(-t).

A. ( ) + ( frac{1}{ } )
B. ( ) + ( frac{1}{j } )
C. ( ) ( frac{1}{j } )
D. ( ) + ( frac{1}{j } )
Answer» D. ( ) + ( frac{1}{j } )
Discussion
6.

Find the Fourier transform of ej 0t.

A. ( + <sub>0</sub>)
B. 2 ( + <sub>0</sub>)
C. ( <sub>0</sub>)
D. 2 ( <sub>0</sub>)
Answer» E.
Discussion
7.

Find the Fourier transform of f(t)=te-at u(t).

A. ( frac{1}{(a-j )^2} )
B. ( frac{1}{(a+j )^2} )
C. ( frac{a}{(a-j )^2} )
D. ( frac{ }{(a-j )^2} )
Answer» C. ( frac{a}{(a-j )^2} )
Discussion
8.

The Fourier transform of a Gaussian pulse is also a Gaussian pulse.

A. True
B. False
Answer» B. False
Discussion
9.

Find the Fourier transform of ( frac{j}{ t} ).

A. sinc( )
B. sa( )
C. ( )
D. sgn( )
Answer» E.
Discussion
10.

The Fourier transform of a function x(t) is X( ). What will be the Fourier transform of ( frac{dX(t)}{dt} )?

A. ( frac{X(f)}{jf} )
B. j2 fX(f)
C. ( frac{dX(f)}{dt} )
D. jfX(f)
Answer» C. ( frac{dX(f)}{dt} )
Discussion