EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 29 - Semiconductor Devices and Communication Systems>TS EAMCET 2021 (04-Aug Shift-1)>Q 16

EASY

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IMPORTANT

Earn 100

A message signal of frequency $f_{m}$ is used to modulate a carrier of frequency $f_{c} .$ If the side bands are $f_{1}$ and $f_{2}$ then the ratio $\frac{f_{c}}{f_{m}}$ is

12.5% studentsanswered this correctly

Important Questions on Semiconductor Devices and Communication Systems

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 29 - Semiconductor Devices and Communication Systems>TS EAMCET 2021 (04-Aug Shift-2)>Q 17

A signal of,

20 kHz

is being carried on a carrier wave of

3 MHz

. What are the side-band frequencies?

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 29 - Semiconductor Devices and Communication Systems>TS EAMCET 2020 (9-Sep Shift-1)>Q 18

A carrier signal of frequency

v_{1}

and peak voltage of

V_{1}

is modulated by a message signal of frequency

v_{2}

and peak voltage of

V_{2}

. Let

m

be the modulation index and

v_{+}, v_{-}

be side bands produced. The correct statement is

MEDIUM

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 29 - Semiconductor Devices and Communication Systems>TS EAMCET 2018 (04-May Shift-1)>Q 19

A carrier wave of peak voltage

20 V

is used to transmit a message signal. For getting a modulation index of

60 %

, the peak voltage of the modulating signal is