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Which of the following quantities is most commonly used to measure large distances in space?

A. Air
B. Light
C. Sound
D. Time


Sagot :

Final answer:

Light's speed (c) is the most common measurement for large distances in space due to its constant velocity in all frames of reference.


Explanation:

The speed of light is the quantity most commonly used to measure large distances in space. Light travels at a constant speed denoted by c, which is approximately 3.00 x 10^8 meters per second.

Unlike sound or air, light can propagate through a vacuum such as outer space, making it a reliable measure for large distances in the universe.

This property of light's speed being constant in all frames of reference is a fundamental concept in physics and plays a crucial role in understanding the vast distances in space.


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