MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

Draw a block diagram of a communication system.

Important Questions on Communication System

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 19
What is meant by detection of a modulated carrier wave? Describe briefly the essential steps for detection.
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 20
What is the function of a transducer used in a communication system? 
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 21
What is the function of repeater used in communication system?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 22
What does the term 'attenuation' used in communication system mean ?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 23
Give one example each of a system that uses sky wave,
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 23
Give one example each of a system that uses space wave mode of propagation.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 24

By what percentage will the transmission range of a TV tower be affected when the height of the tower is increased by 21%.

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 23 - Communication System>EXERCISE 23>Q 25

Why do we need a higher bandwidth for transmission of music compared to that for commercial telephone communication?