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| 1. |
lens made of glass has focal length 0.15m in alr. If the Rl of glass is 3 /2Tessthana-fAconvexand that ofa) 0.45m b) 04)water is 4/3, the focal length of lens when immersed in water is-.15m c) 0:30m d) 0.6m |
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