Question

Four students did their experiments on measuring the speed of a pulse through a string as follows :
Student `A` stretched his thick cotton string very taut and gave it a very mild transverse horizontal jerk.
Student `B` stretched his thin jute string just taut and gave it a mild transverse horizontal jerk.
Student `C` stretched his thick cotton string just taut and gave a strong transverse horizontal jerk.
Student `D` stretched his thin jute string very taut and gave it a strong transverse horizontal jerk.
The best choice is that of student :
A. A
B. B
C. C
D. D

Answer 1

Correct Answer - C
The string should not be streched too taught and the jerk given to the string should be as strong as possible.