A convex and a concave lens of equal focal length behaves as a regular glass slab receiving light normally. [True/False] explain why
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a) A concave lens (ng = 3/2) when placed in water (nw = 4/3) has increased its focal length. b) A convex and a concave lens of equal focal lenth behaves as a regular glass slab receiving light normally. ... Hence the focal length of the concave lens will increase.
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) A concave lens (ng = 3/2) when placed in water (nw = 4/3) has increased its focal length. b) A convex and a concave lens of equal focal lenth behaves as a regular glass slab receiving light normally. ... Hence the focal length of the concave lens will increase .
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