EASY
12th ICSE
IMPORTANT
Earn 100

What is radio wave propagation?

Important Questions on Communication Systems

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 20
Name two electromagnetic waves relevant in radio transmission and communication. What is the difference between them?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 21
What is the cut-off frequency and cut-off wavelength beyond which ground-wave propagation is not possible?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 22
Name an appropriate channel needed to send a bandwidth 100 kHz over a distance of 8 km.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 23
Name the mode of propagation of radio waves which travel in a straight line from the transmitting antenna to the receiving antenna.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 24
What is sky-wave propagation?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 25
Name a possible communication channel for the transmission of a message signal having a bandwidth 5 MHz.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 26
From which layer of atmosphere are radio waves reflected?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 22 - Communication Systems>QUESTIONS>Q 27
What is the cut-off frequency beyond which the ionosphere does not reflect electromagnetic radiation?