What is the electron density of the layer if critical frequency is 3 – McqOptions

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1.	What is the electron density of the layer if critical frequency is 3 MHz?
A.	11×1012/cm3
B.	0.11×1012/cm3
C.	1.1×1012/cm3
D.	0.11×1010/cm3
Answer» C. 1.1×1012/cm3

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