Lenses

The different types, their power and magnification.

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This short video covers some of the terminology you need to know when learning about lenses over the next few videos.

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Converging (convex) and diverging (concave) lenses explained.

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The more powerful a lens is, the more bending ability it has.

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The magnification can be calculated by dividing the image height by the height of the object. We can also calculate it as the ratio of 'v' to 'u'.

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You may be familiar with the equation linking 'f', 'u' and 'v'. In this videos I show you where this equation comes from.