Option:(1) is correct.
When particle starts from 'h' height and hits ground it travels 'h' distance.
Now its kinetic energy becomes half:
kinectic energy just before hitting the ground:
after hitting it becomes half:
after hitting it travels distance upward and distance downward.
after next hitting it travels distance upward and disatnce downward
& this repeats continuously.
So, total distance travelled by particle is:
Sum of GP=