We can see a candle flame at 30 miles on a clear, dark night, and we can hear the tick of a watch 20 feet away in a quiet room. These two facts are examples of __________.

Question

Quizplus · Accepted Answer

The ability to see a candle flame at 30 miles and hear the tick of a watch 20 feet away are examples of absolute thresholds, which refer to the minimum amount of stimulation needed for a person to detect a stimulus 50% of the time.

We Can See a Candle Flame at 30 Miles on a Clear