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What is the difference between a convex mirror and a concave mirror?
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Here are the key differences between convex and concave mirrors:
- Shape:
- Convex Mirror: A convex mirror is a diverging mirror where the reflective surface bulges outwards.
- Concave Mirror: A concave mirror is a converging mirror with a reflective surface that curves inwards.
- Image Formation:
- Convex Mirror: Forms virtual, upright, and diminished (smaller) images. The image appears to be behind the mirror.
- Concave Mirror: Can form both real and virtual images depending on the object's position. Real images are inverted and can be projected onto a screen, while virtual images are upright and appear behind the mirror.
- Light Reflection:
- Convex Mirror: Light rays that strike a convex mirror diverge (spread out) after reflection.
- Concave Mirror: Light rays that strike a concave mirror converge (come together) after reflection.
- Focal Point:
- Convex Mirror: Has a virtual focal point behind the mirror, as the reflected rays do not actually meet.
- Concave Mirror: Has a real focal point in front of the mirror where reflected rays converge.
- Uses:
- Convex Mirror: Used in rearview mirrors in vehicles (provides a wider field of view), security mirrors in stores, and some ATMs.
- Concave Mirror: Used in telescopes, spotlights, headlights, shaving mirrors, and solar concentrators.