![A doctor has prescribed lens of power `+ 1.5 D`. Find the focal length of the lens. Is the presc... - YouTube A doctor has prescribed lens of power `+ 1.5 D`. Find the focal length of the lens. Is the presc... - YouTube](https://i.ytimg.com/vi/pQBrlz3Xku4/maxresdefault.jpg)
A doctor has prescribed lens of power `+ 1.5 D`. Find the focal length of the lens. Is the presc... - YouTube
![17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. - YouTube 17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. - YouTube](https://i.ytimg.com/vi/LTJcmWQpfKY/hqdefault.jpg)
17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. - YouTube
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