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In short wave communication waves of whi...

In short wave communication waves of which of the following frequeuncies will be reflected back by the ionospheric layer having electron density `10^(11)per m^(3)`?

A

`2 MHz`

B

`10 MHz`

C

`12 MHz`

D

`18 MHz`

Text Solution

Verified by Experts

The correct Answer is:
A
By using `f_(c)~~9(N_(max))^(1//2)implies f_(c)~~2MHz`
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