how can we distinguish between convex and concave lens
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a concave mirror is curved inwards while convex is curved outwards
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We can differentiate between a convex and concave lens by seeing the image.
- On keeping the lens near a printed page, if letters appear magnified, the lens is convex and if the letters appear diminished, the lens is concave.
- On seeing a distant object through the lens, if its inverted image is seen, the lens is convex and if an upright image is seen, the lens is concave.
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