Question

for doing the experiment on measuring the velocity of a pulse through a stretched string we use a string and fix its one end to a hook on a wall .we should prefer

Answer 1

heya!!
For doing the experiment on measuring the velocity of a pulse through a stretched string we use a string and fix its one end to a hook on a wall .we should prefer:-
 About 5m long thick tightly knit cotton string hold just taut. 

hope it helps ya!! ^^"