Radiation extends way beyond the visible spectrum, with both longer and shorter wavelengths. The longer the wavelength, the...

Physics Narrative 11-14

Given some radiation, how can one tell whether or not it has wave properties? Superposition experiments offer an answer. Radio...

Teaching Guidance 11-14 14-16

In water whose depth is large compared to the wavelength, the wave speed expression contains two terms, one for gravity...

Teaching Guidance 11-14 14-16