In Fig. 7.1, a ray of red light is reflected from the plane surface of a glass block.
(a)[1]
Explain why the red light ray is totally internally reflected at the surface of the glass block.
(b(i))[1]
State the name of the process by which white light is split into a spectrum.
(b(ii))[1]
Write the names of the seven colours that are seen on the screen between A and B.
(c)[2]
State the name of one other region of the electromagnetic spectrum and describe one use of this type of radiation.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Angle of incidence greater than critical angle OR light travelling from optically denser to less dense medium” …