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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. - Physics

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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, 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).

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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.

Concept: Bandwidth of Signals
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APPEARS IN

NCERT Class 12 Physics Textbook
Chapter 15 Communication Systems
Q 3 | Page 530

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