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Q. |
According to the theory of relativity, which of the following al-ways remains constant? |
A. | Length of an object |
B. | Time |
C. | Space |
D. | Velocity of light |
Answer» D. Velocity of light | |
Explanation: The theory of relativity, or simply relativity, generally encompasses two theories of Albert Einstein: special relativity and general relativity. Concepts introduced by the theories of relativity include: Measurements of various quantities are relative to the velocities of observers. In particular, space and time can dilate. Space time: space and time should be considered together and in relation to each other. The speed of light is nonetheless invariant, the same for all observers. |
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