Question

Sumit, a teenager, enjoys playing his music loudly. However, his grandmother consistently lowers the volume of the music player. Analyse the wave to identify which characteristic of the wave has been altered when the grandmother reduces the volume.

Options

• The length PS becomes more.

• The length SR becomes less.

• The length QR becomes less.

• The length PR becomes less.

Answer 1

The length QR becomes less.

Explanation:

The length QR represents the amplitude of the wave. Lowering the volume reduces the amplitude, so the length QR becomes less.