If we pick up two rocks,one that weighs 1 pound and one that weighs 2 pounds,we can easily notice the difference in weight.But if we pick up two rocks,one that weighs 21 pounds and one that weighs 22 pounds,we probably can't tell the difference.Use the principles of psychophysics to explain this

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The Answer of If we pick up two rocks,one that weighs 1 pound and one that weighs 2 pounds,we can easily notice the difference in weight.But if we pick up two rocks,one that weighs 21 pounds and one that weighs 22 pounds,we probably can't tell the difference.Use the principles of psychophysics to explain this

If We Pick Up Two Rocks,one That Weighs 1 Pound