Q28 · Practice questionSimple familiar1 mark
QUESTION 28
Two laboratories move at constant velocity relative to one another. Each laboratory performs the same mechanics experiment and measures the speed of the same light pulse in vacuum. Which result is consistent with special relativity?
(A)
Both laboratories obtain the same laws of physics and both measure the light pulse at .
(B)
Only the stationary laboratory may use the usual laws of physics.
(C)
The laboratory moving toward the pulse measures a speed greater than .
(D)
The light speed changes with the speed of its source.
WORKED SOLUTION
1 markAnswer A
ANSWER
A
Worked solution
The laws of physics have the same form in all inertial frames, and every inertial observer measures light in vacuum to travel at .
Select the correct option.
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