Question

20. Which of the following is periodic
change​

Answer 1

Answer:

Please post the full question, there are no options to choose..

Answer 2

Answer:

Answer: Periodic changes are changes which occur periodically or at regular intervals Example: Change of seasons. Day and night, changing phases of the moon, beating of heart, clock striking an hour are all examples of periodic motion whereas waterbecoming ice, burning of matchstick etc are non periodic changes.