CameraIcon

SearchIcon

MyQuestionIcon

3

You visited us 3 times! Enjoying our articles? Unlock Full Access!

Mechanical & Non-Mechanical Waves

A radio stati...

Question

A radio station has two channels. One is AM at 1020 kHz and the other FM at 89.5 MHz. For good results you will use

A

Longer antenna for the AM channel and shorter for the FM.

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

B

Shorter antenna for the AM channel and longer for the FM.

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

C

Same length antenna will work for both.

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

D

Information given is not enough to say which one to use.

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

Open in App

Solution

The correct option is B
Shorter antenna for the AM channel and longer for the FM.

For AM channel of 1020 kHz, ground wave propagation is used for which antenna need not be very tall.
For high frequency FM of 89.5 MHz, space wave communication is used for which very tall antennas are needed.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A radio transmitting station operating at a frequency of

120

MHz has two identical antennas that radiate in phase. Antenna

B

9 m

to the right of antenna

A

. Consider point

P

at a horizontal distance

x

to the right of antenna

A

as shown figure. The value of

x

and order for which the constructive interference will occur at point

P

Q. The spectrum in the range (550 to 1650) kHz is allocated for AM radio broadcasting and the spectrum is shared for different AM radio stations using frequency division multiplexing (FDM). If the message signal of each AM radio station is band-limited to 5 kHz then the maximum number of different AM radio stations that can be enjoyed by a listener will be equal to

Q. Assertion: It is not necessary for a transmitting antenna to be at the same height as that of receiving antenna for line-of sight communication.
Reason: If the signal is to be received beyond the horizon then the receiving antenna must be high enough to intercept the line-of sight waves.

Q. A modu action frequency an AM radio station is

250 kHz

10 %

of the carrier wave. If another AM station approaches you for license, what broadcast frequency will you allot ?

Q. The modulation frequency Of an AM radio station is 250 KHz, which is 10% of the carrier wave. If another AM station approaches you for licence what broadcast frequency will you allot?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Recap: Wave Introduction

PHYSICS

Watch in App

explore_more_icon

Explore more

Mechanical & Non-Mechanical Waves

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon