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Digital Signals (I) Do Not Provide a Continuous Set of Values,(Ii) Represent Values as Discrete Steps,(Iii) Can Utilize Binary System(Iv) Can Utilize Decimal as Well as Binary Systems. - CBSE (Science) Class 12 - Physics

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Question

Digital signals

(i) Do not provide a continuous set of values,

(ii) Represent values as discrete steps,

(iii) Can utilize binary system, and

(iv) Can utilize decimal as well as binary systems.

Which of the above statements are true?

(a) (i) and (ii) only

(b) (ii) and (iii) only

(c) (i), (ii) and (iii) but not (iv)

(d) All of (i), (ii), (iii) and (iv).

Solution

(c) Answer:

A digital signal uses the binary (0 and 1) system for transferring message signals. Such a system cannot utilise the decimal system (which corresponds to analogue signals). Digital signals represent discontinuous values.

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Physics Textbook for Class 12 (2018 to Current)
Chapter 15: Communication Systems
Q: 3 | Page no. 530

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Solution Digital Signals (I) Do Not Provide a Continuous Set of Values,(Ii) Represent Values as Discrete Steps,(Iii) Can Utilize Binary System(Iv) Can Utilize Decimal as Well as Binary Systems. Concept: Bandwidth of Signals.
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