Q. Three observers $A,B$ and $C$ measure the speed of light coming from a source to be $v_{A},v_{B}$ and $v_{C}$. The observer $A$ moves towards the source, the observer $C$ moves away from the source with the same speed. The observer $B$ stays stationary, the surrounding space is vacuum every where. Then
A) $v_{A} > v_{B} > v_{C}$
B) $v_{A} < v_{B} < v_{C}$
C) $v_{A} = v_{B} = v_{C}$
D) $v_{A} = v_{B} > v_{C}$
Explanation
The correct answer is Option C: $v_{A} = v_{B} = v_{C}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.