Which mirroji can produce a virtual, erect and magnified ifhage of an object?
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When the object is placed between f and 2f of a convex lens, the image formed is
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A point object is placed at a distance of 20 cm from a convex mirror of focal length 20 cm. The image will form at
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A spherical mirror and a spherical lens each have a focal length of -10 cm. The mirror and the lens are likely to be
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If the power of a lens is – 2 D, what is its focal length?
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Focal length of a concave mirror is
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The image formed by a convex lens can be
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Magnifying power of a concave lens is
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The laws of reflection hold good for
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If an incident ray passes through the focus, the reflected ray will
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Image formed by reflection from a plane mirror is
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When light falls on a smooth polished surface, most of it
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