This block is constructed from a specific type of glass.
(a(i))[3]
Use the details in Fig. 6.1 to calculate the refractive index of light in this type of glass.
(a(ii))[2]
Calculate the critical angle for light in this type of glass.
(b)[3]
State one application of optical fibres. Draw a diagram that shows how an optical fibre is used in this application.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Applies n = sin i \div sin r or uses 61^{\circ} and 33^{\circ}” …