A doctor has prescribed a corrective lens of power, `-1.5D`. Find the focal length of the lens. Is the prescribed lens diverging or converging?

Explanation

Power of lens, P = + 1.5D
`P=1/f`
`1.5=1/f`
`F=(1)/(1.5)`
`F=(10)/(15)`
`F= + 0.67M