(a(i))[2]
Calculate the angle made by the refracted ray.
(a(ii))[1]
Put a tick (✓) in any box in the third column of Table 8.1 to show how the light ray is deflected and what happens to the speed of the light in the ray as it enters the lens.
(a(iii))[1]
State what happens to the light frequency in the ray as it enters the glass.
(b(i))[1]
State the meaning of focal length.
(b(ii))[4]
Using Fig. 8.1, mark the position of image I formed from O.
(b(iii))[3]
Find the distance of I from the lens and calculate the magnification produced by the lens for O.
(c)[3]
Describe how a converging lens is used inside a camera.