K.C.S.E Physics Q & A - MODEL 2013PP2QN14

K.C.S.E Physics Q & A - MODEL 2013PP2QN14

​Figure 6 shows two convex lenses A and B used to produce a magnified virtual image of an object.

​(a) Determine the focal length of lens A. (Take unit to represent 10cm). 
(b) State the function of:
(i) lens A 
(ii) lens B 
(c) State how the functions in (b) are achieved by:
(i) lens A 
(ii) lens B 
(d) Determine the magnification produced by:
(i) lens A: 
(ii) the whole system. 

answers