# Electronics and Communication Engineering - Signals and Systems - Discussion

Discussion Forum : Signals and Systems - Section 2 (Q.No. 5)

5.

The sampling of a function

*f*(*l*) = sin 2p*f*_{0}*t*starts from a zero crossing. The signal can be detected if sampling time T isAnswer: Option

Explanation:

Because *f _{s}* ≤ 2

*f*

_{0}, T

*s*≤ .

Discussion:

7 comments Page 1 of 1.
DILSHAD RAZA said:
6 years ago

Fs>=2f0 satisfy the condition.

assume Fs=6.

And f0=2.

So Ts =1/6.

So Ts<=(1/2f0).

By this concept;

Fs >=(1/2f0).

This shows that Fs is greater than 2f0 so this satisfies the condition.

assume Fs=6.

And f0=2.

So Ts =1/6.

So Ts<=(1/2f0).

By this concept;

Fs >=(1/2f0).

This shows that Fs is greater than 2f0 so this satisfies the condition.

Uma prathyusha said:
7 years ago

Fs>=2f0 satisfies condition then T must be T<=1/2fo hence D is the correct answer.

Atchyut said:
8 years ago

How did you get the above answer? Explain.

Santhosh said:
8 years ago

I think, option D is the right answer.

Anvesh said:
5 years ago

Option D is correct answer.

Rasu said:
8 years ago

I think B is the answer.

Sheels said:
7 years ago

D is the right answer.

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