Circular wavefronts emitted by a point source S S\,S travel through a medium and strike a flat, reflecting barrier. The barrier is vertical, with the source S S\,S on its left. The wavefronts are reflected so that they appear to diverge from a virtual source S1 S_1\,S1 located on the right side of the barrier, at the same distance from the barrier as SSS.
Which statement correctly describes the reflected wavefronts?
The reflected wavefronts lie to the left of the barrier, travel to the left, and are curved such that their center of curvature is at the virtual source S1S_1S1.
The reflected wavefronts lie to the left of the barrier, travel to the left, and are curved such that their center of curvature is at the real source SSS.
The reflected wavefronts lie to the right of the barrier, travel to the right, and are curved such that their center of curvature is at the virtual source S1S_1S1.
The reflected wavefronts lie to the left of the barrier, travel to the right, and are curved such that their center of curvature is at the real source SSS.
237 exam-style questions on CIE IGCSE Physics General properties of waves, covering General properties of waves. Each one has a worked solution and a mark scheme showing where the marks go.