Mirrors and Reflection

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# Mirrors and Reflection - PowerPoint PPT Presentation

Mirrors and Reflection. Law of Reflection. Angle of incidence equals the angle of reflection Whatever angle the light hits the surface, it will bounce back at the same angle. However…. ….the shape of the reflecting surface affects the way light reflects from it. Plane Mirror.

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## PowerPoint Slideshow about 'Mirrors and Reflection' - semah

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Presentation Transcript

### Mirrors and Reflection

Law of Reflection
• Angle of incidence equals the angle of reflection
• Whatever angle the light hits the surface, it will bounce back at the same angle
However…..

….the shape of the reflecting surface affects the way light reflects from it

Plane Mirror
• Has a flat surface
• Reflection is upright and same size
• Images are reversed
• Examples: bathroom mirror, rearview mirror in a car
Concave Mirror
• Curved inward
• If the object is close to the mirror, the image is enlarged and upright
• If the object is far away, the image is reduced in size and upside down
• Examples: inside of a spoon, reflecting telescope, inside of a flashlight
Convex Mirror
• Curves outward
• The image is upright and smaller
• Useful because they allow you to see a large area
• Examples: side mirrors on cars, back of a spoon, used for security

### Lenses and Refraction

Convex Lens
• Thicker in the middle than at the edges
• Light refracts towards the center (converges)
• Examples: magnifying glasses, human eye, cameras, projectors
Concave Lens
• Thinner in the middle than at the edges