It is necessary to use satellites for long distance T.V. transmission. Why?

Open in App

Solution

Television signal are of high frequencies ( ranging from $47 M H Z$ to $960 M H Z$ ) by which they cannot be reflected by ionosphere hence to reflect them satellite are essential. This is why satellites are used for long-distance T.V transmission.

Suggest Corrections

Similar questions

Q. It is necessary to use satellites for long distance TV transmission because

Q. Assertion: Artificial satellites are not necessary for long distance TV transmission
Reason: TV signals are not reflected by the ionosphere. They are reflected back to the earth from an earth station by artificial satellites

Q. Assertion: It is necessary to use satellites for long distance T.V transmission
Reason : The television signals are low frequency signals

Answer the following questions:

(a) Long distance radio broadcasts use short-wave bands. Why?

(b) It is necessary to use satellites for long distance TV transmission. Why?

(c) Optical and radio telescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth. Why?

(d) The small ozone layer on top of the stratosphere is crucial for human survival. Why?

(e) If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now?

(f) Some scientists have predicted that a global nuclear war on the earth would be followed by a severe ‘nuclear winter’ with a devastating effect on life on earth. What might be the basis of this prediction?

Q. Answer the following questions: (a) Long distance radio broadcasts use short-wave bands. Why? (b) It is necessary to use satellites for long distance TV transmission. Why? (c) Optical and radiotelescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth.Why? (d) The small ozone layer on top of the stratosphere is crucial for human survival. Why? (e) If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now? (f ) Some scientists have predicted that a global nuclear war on the earth would be followed by a severe ‘nuclear winter’ with a devastating effect on life on earth. What might be the basis of this prediction?

Join BYJU'S Learning Program

It is necessary to use satellites for long distance T.V. transmission. Why?

Television signal are of high frequencies ( ranging from 47 MHZ to 960 MHZ) by which they cannot be reflected by ionosphere hence to reflect them satellite are essential. This is why satellites are used for long-distance T.V transmission.

Television signal are of high frequencies ( ranging from $47 M H Z$ to $960 M H Z$ ) by which they cannot be reflected by ionosphere hence to reflect them satellite are essential. This is why satellites are used for long-distance T.V transmission.