On certain day, it is observed that the signals of higher than 5 MHz are not recived by reflection from F_(1) layer of ionosphere. The approximate maximum electron density of F_(1) layer ontheday is

On certain day, it is observed that the signals of higher than 5 MHz a

1.	On certain day, it is observed that the signals of higher than 5 MHz are not recived by reflection from F_(1) layer of ionosphere. The approximate maximum electron density of F_(1) layer ontheday is
Answer» `7.9xx10^(11)//m^(3)` `5XX10^(11)//m^(3)` `4.2xx10^(11)//m^(3)` `3XX10^(11)//m^(3)` ANSWER :D

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On certain day, it is observed that the signals of higher than 5 MHz are not recived by reflection from F_(1) layer of ionosphere. The approximate maximum electron density of F_(1) layer ontheday is

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