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Lenses

The different types, their power and magnification.

  1. Intro to Lenses

  2. Converging vs Diverging

  3. Power of a Lens

  4. Magnification of a Lens

  5. Lens Equation

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1. Intro to Lenses

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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2. Converging vs Diverging

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

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3. Power of a Lens

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

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4. Magnification of a Lens

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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5. Lens Equation

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

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