Question

1. The table lists a few motions which relate to measuring time.
1. Motion of pendulum
2. Sand falling in an hourglass
3. Change in the position of a shadow

Which of these motions can be considered as a periodic motion?​

Answer 1

Answer:

motion of pendulum plz mark me brainliest

Answer 2

Answer:

1 and 2 both

pls mark me as brainliest