The frequency of the monochromatic light produced by a laser is 5.0×1014 Hz5.0 \times 10^{14} \text{ Hz}5.0×1014 Hz.
A ray of light from the laser passes from a vacuum, where the speed of light is 3.0×108 m/s3.0 \times 10^8 \text{ m/s}3.0×108 m/s, into a block of crown glass.
State
(i) what is meant by monochromatic,
(ii) the frequency of light from the laser inside the glass block.
The speed of light in the glass block is 1.875×108 m/s1.875 \times 10^8 \text{ m/s}1.875×108 m/s.
Calculate
(i) the refractive index of the glass from which the block is made,
(ii) the wavelength of light from the laser inside the glass block.
100 exam-style questions on CIE IGCSE Physics 3.2.2 Refraction of light. Each one has a worked solution and a mark scheme showing where the marks go.