Question

pls ans then i will see who is the tropper ..​

Answer 1

Answer:

It is 100H².

Explanation:

There are 20 crests and 20 trough in 0.2s, which implies 20 waves.

And if there are 20 crests and 20 trough, this mean that there are 20 waves in 0.2s.

• Frequency = Number of Waves/ Time Taken
• 20/0.2= 200/2
• = 100H²
• v= 100H²

Hope it helps you!