Question

A company in Las Vegas hired you to design a night show in the desert. Your plan was to linearly fix a series of lights separated by an equal distance ? so they flash sequentially with different colours but with equal time ?, as measured by a stationary observer on the ground. What is the value of ? and the limit on ? such that a person, who is traveling at very high-speed ?, would observe all lights simultaneous in her/his frame?

(A)v=τc2 /d &d/τ=c (B)v=τc2 /d &d/τ<c (C)v=τc/d &d/τ>c (D)v=τc2 /d &d/τ>c (E)Noneoftheabove

Answer 1