Solved

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

Question 10

Multiple Choice

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

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