The wavefronts of light waves from a monochromatic source are approaching a narrow slit.
Name the wave effect produced when these light waves pass through the narrow slit.
A student refers to a scale drawing of the waves where the scale is 1.0 cm:2.5×10−7 m1.0\text{ cm} : 2.5 \times 10^{-7}\text{ m}1.0 cm:2.5×10−7 m. In the drawing, the measured distance between two successive crests (one wavelength) is 2.4 cm. Determine the wavelength of the light. Give your answer to two significant figures.
Describe the pattern of three successive wavefronts that have passed through the narrow slit, specifying their shape, center of curvature, and wavelength.
A loudspeaker at an outdoor stage emits a sound wave with a frequency of 440 Hz. A listener is standing 1.2 km away from the loudspeaker. The speed of sound in the air is 340 m/s.
Show that the wavelength of the sound is approximately 0.8 m. State any equation you use in words or symbols.
Calculate the time it takes for the sound to travel to the listener from the loudspeaker.
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.