Ten questions. The result tells you which lessons you may skip.
Light of wavelength \(600\,\text{nm}\) in air enters glass of \(\mu = 1.5\). In the glass, its wavelength and frequency are
A ray in air meets glass of \(\mu = \sqrt2\) at an angle of incidence of \(45°\). The angle of refraction is
A coin lies under \(12\,\text{cm}\) of water (\(\mu = \tfrac43\)). Seen from directly above, it appears at a depth of
A glass slab \(6\,\text{cm}\) thick (\(\mu = 1.5\)) lies on a printed page. The letters appear raised by
The critical angle of glass of \(\mu = 1.5\) in air is about
A lamp is \(\sqrt7\,\text{m}\) below the surface of water (\(\mu = \tfrac43\)). Its light leaves the surface through a circle of radius
A ray in horizontal layers makes \(60°\) with the vertical in air. In a layer of \(\mu = \sqrt3\) far below, it makes with the vertical an angle of
A \(60°\) prism shows a minimum deviation of \(30°\). Its refractive index is
A thin prism of \(4°\) is made of glass of \(\mu = 1.5\). It deviates light by
A glass has \(\mu_v = 1.52\), \(\mu_r = 1.48\) and \(\mu_y = 1.50\). Its dispersive power is