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It is neccessary to use satellites for l...

It is neccessary to use satellites for long distance TV transmission. Why ?

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Yes, television signals being of high frequency are not reflected by ionosphere . Therefore to reflect them satellites are needed. That is why, satellites are used for long distance TV transmission.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-ELECTROMAGNETIC WAVE-ADDITIONAL EXERCISES
  1. Suppose that the electric field part of an electromagnetic wave in vac...

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  2. Suppose that the electric field part of an electromagnetic wave in vac...

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  3. Suppose that the electric field part of an electromagnetic wave in vac...

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  4. Suppose that the electric field part of an electromagnetic wave in vac...

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  5. Suppose that the electric field part of an electromagnetic wave in vac...

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  6. About 5% of the power of a 100 W light bulb is converted to visible ra...

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  7. About 5% of the power of a 100 W light bulb is converted to visible ra...

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  8. Use the formula lambda(m)T=0.29 cm K to obtain the characteristic temp...

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  9. Given below are some famous numbers associated with electromagnetic ra...

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  10. Given below are some famous numbers associated with electromagnetic ra...

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  11. Given below are some famous numbers associated with electromagnetic ra...

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  12. Given below are some famous numbers associated with electromagnetic ra...

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  13. Given below are some famous numbers associated with electromagnetic ra...

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  14. Long distance radio broadcasts use short-wave bands . Why ?

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  15. It is neccessary to use satellites for long distance TV transmission. ...

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  16. Optical and radio telescopes are built on the ground but X-ray astrono...

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  17. The small ozone layer on top of the stratosphere is crucial for human ...

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  18. If the earth did not have an atmosphere, would its average surface tem...

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  19. Some scientists have predicited that a global nuclear war on the earth...

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