In daily life, the relative change in mass, length and time of an object cannot be observed because the
Correct answer: D. speed of the object is much smaller than that of light.
- A. size of the object is very small.
- B. mass of the object is very large.
- C. speed of the object is equal to the speed of light
- D. speed of the object is much smaller than that of light.
Explanation
The relative change in mass, length, and time of an object can be observed when the speed of the object is much smaller than that of light. This is because at such speeds, relativistic effects are insignificant, allowing for the direct observation of these changes. The other options are incorrect because they do not address the impact of the object's speed on observing these relative changes.
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