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Lens
what do you mean by convex and concave lenses?
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1 Reply
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Convex and concave lenses are two types of optical lenses that have different shapes and properties. Here’s an explanation of the key differences:
Convex Lens:
A convex lens is thicker at the center than at the edges.
It is curved outwards, resembling the shape of a sphere.
Convex lenses are thicker in the middle and thin out towards the edges.
Convex lenses are able to converge (bend inward) light rays, causing them to focus at a specific point.
Convex lenses are used in magnifying glasses, telescopes, camera lenses, and eyeglasses to correct nearsightedness.
Concave Lens:
A concave lens is thinner at the center than at the edges.
It is curved inwards, resembling the shape of a curved mirror.
Concave lenses are thinner in the middle and thicker towards the edges.
Concave lenses are able to diverge (bend outward) light rays, causing them to spread out.
Concave lenses are used in eyeglasses to correct farsightedness by spreading out light rays before they reach the eye.
The key difference between convex and concave lenses is that convex lenses converge light, while concave lenses diverge light. This fundamental difference in how they bend light gives them their unique optical properties and uses.
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