D Question 3 2 pts How tall does a mirror on the wall need to be so that you can see your entire body from head to toes? The same height as you O Half your height O Twice your height O A third of your height O A quarter of your height D Question 4 2 pts The lens in the figure is used to produce a real image of a candle flame. What is the focal length of the lens? 12 cm 36 cm O 9.0 cm O 12 cm O 24 cm 36 cm 48 cm