Refractive index `mu` of a layer in sky wave propagation is given byA. ` mu = sqrt( 1 - ( 81.45 N)/(v^(2)))`B. ` mu = sqrt( 1 + ( 81.45 N)/(v^(2)))`C. ` mu = sqrt( 1 + ( 81.45 N^(2))/(v))`D. ` mu = sqrt( 1 - ( 81.45 N^(2))/(v))`

Refractive index `mu` of a layer in sky wave propagation is given byA.

1.	Refractive index `mu` of a layer in sky wave propagation is given byA. ` mu = sqrt( 1 - ( 81.45 N)/(v^(2)))`B. ` mu = sqrt( 1 + ( 81.45 N)/(v^(2)))`C. ` mu = sqrt( 1 + ( 81.45 N^(2))/(v))`D. ` mu = sqrt( 1 - ( 81.45 N^(2))/(v))`
Answer» Correct Answer - A

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Refractive index `mu` of a layer in sky wave propagation is given byA. ` mu = sqrt( 1 - ( 81.45 N)/(v^(2)))`B. ` mu = sqrt( 1 + ( 81.45 N)/(v^(2)))`C. ` mu = sqrt( 1 + ( 81.45 N^(2))/(v))`D. ` mu = sqrt( 1 - ( 81.45 N^(2))/(v))`

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