K.C.S.E Physics Q & A - MODEL 2010PP2QN16

K.C.S.E Physics Q & A - MODEL 2010PP2QN16

​(a) Figure 10, shows an object placed in front of a converging lens of focal length 50mm

​(i) On the same figure, draw a ray diagram showing the location of the image. 
(ii) Use the ray diagram to determine the:
(1) image distance; 
(II) magnification. 
(iii) State the adjustment that should be done to obtain a larger virtual image using the same lens. 
(iv) State one application of the arrangement in figure 10. 
(b) Figure 11, shows a pin 60 mm long placed along the principal axis of the lens used in part (a). The near end of the pin is 80 mm from the lens.

​Determine the length of the image. 

answers