Physics: Converging and Diverging Lenses

casiocasio442 · Mar 30, 2020

Summary:: I cannot seem to get the answer to the following question.
For (a) I am using the formula 1/V= 1/U- 1/F, giving me 7.5cm. I am then adding this to 50cm to get 57.5cm. I then used -1/20-1/57.5-1/v to get **-14.9cm** which is Incorrect.
Any help greatly appreciated!

Two ray-free diagrams labeled (a) and (b) of a converging lens and a diverging lens on a horizontal axis, with the object arrow and focal point F converging marked to the left of lens 1.

Dr_Nate · Mar 30, 2020

You could try drawing the ray diagrams to give you an idea of what the answer should be. That might help you think about what you need to do to actually calculate it.

Merlin3189 · Mar 30, 2020

Have you tried 14.8?

Physics: Converging and Diverging Lenses

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