When electromagnetic waves enter the ionised layer of ionosphere, then the relative permittivity i.e. dielectric constant of the ionised layerA. does not changeB. appears to increaseC. appears to decreasesD. sometimes e appears to increase and sometimes to decreases

When electromagnetic waves enter the ionised layer of ionosphere, then

1.	When electromagnetic waves enter the ionised layer of ionosphere, then the relative permittivity i.e. dielectric constant of the ionised layerA. does not changeB. appears to increaseC. appears to decreasesD. sometimes e appears to increase and sometimes to decreases
Answer» Correct Answer - C When electromagnetic wave enter the ionised layer of ionosphere , then the relative premittivity of the ionised layer appears to decrease .

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When electromagnetic waves enter the ionised layer of ionosphere, then the relative permittivity i.e. dielectric constant of the ionised layerA. does not changeB. appears to increaseC. appears to decreasesD. sometimes e appears to increase and sometimes to decreases

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