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This question belongs to Electronics And Communications Engineering Electromagnetic Field Theory

Electromagnetic Field Theory

?

If R = Earth's radius, h = orbit height, β = coverage angle, and θ = minimum elevation angle, then which one of the following relations is correct?

A) $$\frac{R}{{R + h}} = \frac{{\cos \left( {\beta + \theta } \right)}}{{\cos \left( \theta \right)}}$$ B) $$\frac{R}{h} = \frac{{\cos \left( \beta \right)}}{{\cos \left( \theta \right)}}$$ C) $$\frac{h}{R} = \frac{{\cos \left( {\beta + \theta } \right)}}{{\cos \left( \beta \right)}}$$ D) $$\frac{{R + h}}{h} = \cos \left( {\beta + \theta } \right) - \cos \left( \theta \right)$$

Answer & Solution

Correct Answer: Option A

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