question_answer

There is some water in a beaker placed on the pan of a spring balance. If we dip our finger in this water without touching the bottom of the beaker then what would be the effect on the reading of the balance?

Answer:

                The reading will increase. The water will exert up thrust on the finger and the finger will exert an equal force of reaction on water in the downward direction i.e., on the bottom of the beaker.