P4 Physics pg 100
- Created by: Abigail Swann
- Created on: 04-04-13 16:14
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- Images and converging lenses
- A real images is light from an object combining to form an image on screen
- Virtual images can't be projected
- A virtual image is the rays diverging, so the light from the object looks as if its coming from a completely different place
- Converging lenses focus light
- It causes rays of light to move together to focues
- The focal length is the distance between the centre of the lens and the focal point
- A ray travelling parallel to the axis slows down as it bends towards the normal
- A ray passing through the optical centre of the lens seems to pass straight through
- Convex lenses can turn diverging light rays into parallel light
- Can make real or virtual images
- A real images is light from an object combining to form an image on screen
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