A sound wave travels through water and emerges into the air. Some of the sound is reflected back into the water, and some is transmitted into the air. How do the speed and the wavelength of the sound in the air compare to the speed and the wavelength of the sound in the water?
The speed is less than in water, and the wavelength is less than in water.
The speed is less than in water, and the wavelength is greater than in water.
The speed is greater than in water, and the wavelength is less than in water.
The speed is greater than in water, and the wavelength is greater than in water.
295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.