Question

1) Are the following events periodic or non - periodic?
i) The school Bell ringing
ii)a test tube breaking
iii)an orange being peeled
iv)The rajadhani express leaving for New Delhi
v) sunrise and sunset
vi) milk going sour.​

Answer 1

1=periodic

2=non - periodic

3=periodic

4=periodic

5=non - periodic

6=non periodic