You can easily tell the difference between 1 and 2 kg,but not 100 and 101 kg,illustrating an absolute threshold for perceiving differences in weight.

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Quizplus · Accepted Answer

This illustrates Weber's Law, which states that the ability to perceive differences in weight is relative, not absolute, and depends on the proportionate difference rather than the absolute difference.

You Can Easily Tell the Difference Between 1 and 2