Question

As waves propagate through a medium, they transport energy. We can easily demonstrate this by

• A. hanging an object on a stretched string and then sending a pulse down the string
• B. throwing a stone into a pond
• C. compressing a spring and releasing it.
• D. None of these.

Answer 1

Answer: (A), (B), (C)

The correct options are
A hanging an object on a stretched string and then sending a pulse down the string
B throwing a stone into a pond
C compressing a spring and releasing it.

Compressing a string and releasing forms longitudinal waves as we can see rarefracion & compression.

Throwing a stone in a pond form repels which are water waves (both transverse & longitudinal) propagating in water.

And the pulse created in string are transverse wave in solids.

Hence options (A), (B) & (C) are correct.