Question

If two troughs in a ripple tank meet, what happens?

A) They cancel each other out.

B) They combine to form a larger trough.

C) Nothing happens.

D) Destructive interference occurs.

Which is an application of the transfer of energy by water waves?

A) water purification

B) deep sea fishing

C) oil drilling

D) power generation

Answer 1

When the two troughs meet they combine to form a larger trough,  aka constructive interference.

For the second question I am not sure but I would say D.

hope this helps and have a great day :)