Practice Question

1. Explain how changing the shape of a lens will affect the power of the lens

The more curved the lens, the greater the power of the lens

2. Describe what is meant by the term power of the lens. 

The power of the lens is linked to how much it will refract light rays. The more powerful the lens, the more it will refract the light rays.

3. Describe the relation ship between power of the lens and focal length. 

As power of the lens increases, the focal length will decrease.