State the name given to a reflected sound wave or ultrasound wave.
A medical ultrasound transducer emits a sound wave with a frequency of 5.0 MHz5.0\text{ MHz}5.0 MHz that travels through human muscle tissue at a speed of 1500 m/s1500\text{ m/s}1500 m/s. Calculate the wavelength of this ultrasound wave in the muscle tissue.
Circular wave crests from a point source SSS travel outwards and strike a flat, vertical barrier.
Describe how one wavelength of the incident wave is identified from the positions of the crests.
Describe the shape, apparent center of curvature, and wavelength of the reflected wave crests.
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.