Multiple Lens Systems

[Becky'sHair]

Optics is already my weakest physics subjects- I get the concepts, but when I apply it together it confuses me.
1- Do you think there is a high chance multiple lenses will get tested? And if so, where can I get more info about it. I've checked youtube and khan academy and can't find a good video. (Or helpful video about optics in general)
2- I've done all my test prep company's questions and full lengths, and finishing the AAMC question packs and section banks. Anyone know other good practice material?

---

Members don't see this ad.

 

[BerkReviewTeach]

The typical double lens example is a microscope. Telescopes are also fair game. The most important thing to keep in mind is that the image of the first lens (or mirror) becomes the object of the second lens (or mirror). If you do these question systematically and one optical device at a time, you'll be fine.

Also use common sense whenever possible. Microscopes are designed to generate enlarged images, so they must employ converging lenses. As the object gets closer to f, the image it produces gets larger, so object positions should be very close to f. Keep things as simple as possible and always try to look at the big picture when considering these systems.