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Why long distance radio broadcasts use s...

Why long distance radio broadcasts use shortwave bands?

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This is because ionosphere reflects waves in these bands.
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A : Long distance radio broadcasts use short-wave bands. R : Ionosphere reflectes waves in these bands.

Statement 1: Long distance radio broadcasts use short wave bands. Statement 2: Short wavelength signals are reflected by the ionosphere.

Give reasons for the following: (i) Long distance radio broadcasts use short-wave bands. (ii) The small ozone layer on top of the stratosphere is crucial for human survival. (iii) Satellites are used for long distance TV transmission.

Long distance radio broadcasts use short wave bands. Explain why?

Long distance short-wave radio broadcasting uses

Which mode of propagation is used by short wave broadcast services having frequency range from a few MHz upto 30 MHz ? Explain diagrammatically how long distance communication can be achieved by this mode . Why is there an upper limit to frequency of waves used in this mode ?

the FM Radio broad casting band is

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