write 3 uses of concave lens
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1) Concave lens are used in a variety of technical and scientific products .
2) Concave lens have several uses , including in eyeglasses and contacts , flashlights 3 peepholes , Binocular, telescope and in photography .
3) Concave lenses are used for correcting short - sightedness.
2) Concave lens have several uses , including in eyeglasses and contacts , flashlights 3 peepholes , Binocular, telescope and in photography .
3) Concave lenses are used for correcting short - sightedness.
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