A person struggles to read by holding a book at arm's length,a distance of 45 cm away (= near point). What power of readingglasses should be prescribed for him, assuming they will be placed2.0 cm from the eye and he wants to read at the normal near pointof 25 cm? * answer: Power (P) = 2.02 D* The answer was given by my teacher, but I have no clue howto work this problem.