Question

question 15 (3 points)
listen
below are illustrations of waves. study the illustrations and answer the questions that follow.
which wave has the least energy?
they all have the same frequency.
c
a
b

Explanation:

Step1: Recall energy - amplitude relation

The energy of a wave is proportional to the square of its amplitude. Larger amplitude means more energy.

Step2: Compare amplitudes

Wave C has the smallest amplitude among A, B and C. Since energy is related to amplitude as mentioned above, the wave with the smallest amplitude has the least energy.

Answer:

C