Which statement about a wave produced by a doorbell is true?

A) It does not require a medium to travel
B) It propagates in the form of compression and refraction
C) The particles of a wave medium vibrate perpendicular to the direction of the wave
D) It propagates through crest and troughs

Question

Which statement about a wave produced by a doorbell is true?

A) It does not require a medium to travel
B) It propagates in the form of compression and refraction
C) The particles of a wave medium vibrate perpendicular to the direction of the wave
D) It propagates through crest and troughs

anonymous · Answer

Do you have an idea ?

anonymous · Answer

If I had to guess I would say C but I don't have any clue.

anonymous · Answer

Think about sound wave. It is a longitudinal wave. As a longitudinal wave propagates in a medium, particles in medium move parallel with the wave. So, it is not c.

anonymous · Answer

Don't need it anymore.
, thanks though.

anonymous · Answer

u r welcome!