Which quantity is invariant,i.e.,has the same value,in all reference frames? A)Time,$\Delta$t B)Space,$\Delta$x C)Velocity,v D)Spacetime interval,[($\Delta$r)² - c²($\Delta$t)²]^1/2

Question

Quizplus · Accepted Answer

The spacetime interval is a Lorentz invariant quantity, which means it has the same value in all reference frames. It is a combination of both space and time components, so choices A and B are not invariant. Velocity, choice C, changes with different reference frames.

Which Quantity Is Invariant,i Δ\DeltaΔ T B)Space Δ\DeltaΔ X C)Velocity,v D)Spacetime Interval,[ Δ\DeltaΔ

Which Quantity Is Invariant,i $\Delta$ T
B)Space $\Delta$ X
C)Velocity,v
D)Spacetime Interval,[ $\Delta$