MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Electromagnetic Spectrum

Find the mism...

Question

Find the mismatch

A

Sky wave communication : Frequency upto 30 MHz

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Line-of-sight communication : Frequency greater than 40 MHz

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Mobile telephony : Frequency range 800-950 kHz

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

Facsimile : Static document

No worries! We‘ve got your back. Try BYJU‘S free classes today!

E

Ground wave propagation : Frequency less than a few MHz

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D Mobile telephony : Frequency range 800-950 kHz
Range of Cellular Mobile Radio is 896 to 901 MHz- Mobile to base station
and 840-935MHz- Base station to mibile

Suggest Corrections

thumbs-up

0

Similar questions

Q. (i) Which mode of propagation is used by short wave broadcast service having frequency range from a few MHz upto 30 MHz ? Explain diagrammatically,upto what distance, communication can be achieved, by this mode.

(ii) Why is there an upper limit to the frequency of waves used in this mode ?

Q. Assertion: Electromagnetic waves with frequencies smaller than the critical frequency of ionosphere cannot be used for communication using sky wave propagation.
Reason: The refractive index of the ionosphere becomes very high for frequencies higher than the critical frequency.

Q. Sky wave propagation is not possible for waves of frequency

> 30 M H z

Q. The electromagnetic waves of frequency 2 MHz to 30 MHz are

Q. Which basic mode of communication is used in satellite communication? What type of wave propagation is used in this mode? Write, giving reason, the frequency range used in this mode of propagation.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Adaptive Q18

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Electromagnetic Spectrum

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon