A certain LCD projector comprises of a single thin lens. The object 23.5 mm high is to be projected in such a way that its image fills a screen 1.77 m high. The object-to-screen distance is around 2.98 m.
(i) Find out the focal length of the projection lens.
(ii) Determine how far from the object must the lens of the projector be positioned to form the image on the screen?