Question

It is desired to magnify reading material by a factor of 2.32x when a book is placed 7.17 cm behind a lens. what is the power of the lens in diopters?

Magnifying Power It is desired to magnify reading material by a factor of 2.32x when a book is placed 7.17 cm behind a lens. What is the powe of the lens in diopters? (Do not enter units). 19.96 Note: The sign on the magnification factor is improtant. Submit Answer Incorrect. Tries 5/6 Previous Tries

Please help, im not too sure what im doing wrong or if I need to put the sign or something

Answer 1

M= 2-32. U = -7.17 cm 는 -그 f وا ul ㅗ 0 그 + + 1 u ty ty 02 fu ftu ME tu u(f) 3 f (+4) F 2·32 (-7-17) = 12.6& CM = 6.1260/& M Power (P) = 1 1 6. 1260/8 - +7.94 diopter

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