Question: 31 -

What is/are the crucial purposes of using the Fourier Transform while analyzing any elementary signals at different frequencies?

Both Transformation from time domain to frequency domain & Plotting of amplitude & phase spectrum

Plotting of amplitude & phase spectrum

None of the above

Transformation from time domain to frequency domain

Answer:

Both Transformation from time domain to frequency domain & Plotting of amplitude & phase spectrum

Solution not available.

Question: 32 -

Which among the following assertions represents a necessary condition for the existence of Fourier Transform of discrete time signal (DTFT)?

Discrete Time Signal should be absolutely multipliable

Discrete Time Signal should be absolutely differentiable

Discrete Time Signal should be absolutely summable

Discrete Time Signal should be absolutely integrable

Answer:

Discrete Time Signal should be absolutely summable

Solution not available.

Question: 33 -

What is the possible range of frequency spectrum for discrete time fourier series (DTFS)?

-π to +π

Both 0 to 2π & -π to +π

None of the above

0 to 2π

Answer:

Both 0 to 2π & -π to +π

Solution not available.

Question: 34 -

Which is/are the mandatory condition/s to get satisfied by the transfer function for the purpose of distortionless transmission?

Both a & b

Amplitude Response should be constant for all frequencies

Phase should be linear with frequency passing through zero

None of the above

Answer:

Both a & b

Solution not available.

Question: 35 -

Which among the below assertions is precise in accordance to the effect of time scaling?

A : Inverse relationship exists between the time and  frequency domain representation of signal
B : A signal must be necessarily limited in time as well as frequency domains

Both A & B are false

Both A & B are true

A is false & B is true

A is true & B is false

Answer:

A is true & B is false

Solution not available.