Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R)

Assertion (A) : In Global Positioning System three satellites are accommodated in each orbit at an altitude of 20,185 km from surface of the Earth
Reason (R) : All the GPS satellites are placed in six orbits.

In light of the above statements, choose the correct answer from the options given below.

• A. Both (A) and (R) are true and (R) is the correct explanation of (A).
• B. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
• C. (A) is true but (R) is false.
• D. (A) is false but (R) is true.

Hint:

Remember the basic GPS constellation mathematics:
\[ 6 \text{ orbital planes} \times 4 \text{ satellites per plane} = 24 \text{ baseline satellites} \] This simple formula helps identify statements claiming "3 satellites per orbit" as incorrect.

Answer 1

The Correct Option is D