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The distance between… calculate the focal length of the lens
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Which of the following statements about defects of vision is/are correct?
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A convex mirror is used as a driving mirror because-2…
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Which of the following curved surfaces will produce a real image?
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The inside portion of part of a hollow metal sphere of diameter 20cm is…
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A convex mirror is used as a driving mirror because…
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Convex mirrors are used as driving mirrors because…
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The production of pure spectrum could easily be achieved using a…
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Spectacles with convex lenses correct long-sightedness by…
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