How will you distinguish between a convex lens and a concave lens by feeling with your finger
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Convex lens bulges out side
Concave lens bulges inside
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Answer:
Basis for Comparison Convex Lens Concave Lens
Meaning Convex lens refers to the lens which merges the light rays at a particular point, that travels through it. Concave lens can be identified as the lens which disperses the light rays around, that hits the lenses.
Figure convex lens concave lens
Curve Outward Inward
Light Converges Diverges
Centre and edges Thicker at the center, as compared to its edges. Thinner at the center as compared to its edges.
Focal length Positive Negative
Image Real and inverted image. Virtual, erect and diminished image.
Objects Appear closer and larger. Appear smaller and farther.
Used to Correct hyperopia. Correct myopia.
Explanation:
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