The combined effect of curvature and refraction over a distance L kilo – McqOptions

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1.	The combined effect of curvature and refraction over a distance L kilometres is
A.	67.2 L2 mm
B.	76.3 L2 mm
C.	64.5 L2 mm
D.	none of these.
Answer» B. 76.3 L2 mm

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