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Grade 9Wave Optics

A microscope is focussed on a coin lying at the bottom of a beaker.The microscope is now raised up by 1 cm.To what depth should the water be poured into the beaker so that coin is again in focus ( neuw w = 4/3).

Profile image of Drovan Reddy
10 Years agoGrade 9
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2 Answers

Profile image of Nitesh Narayana
10 Years ago
using   seperation = real depth – apparent depth .  apparent depth = real depth /n . we get real depth = 4cm
Profile image of ankit singh
5 Years ago
The microscope is now raised up by 1cm. To what depth should the water be poured into the beaker so that coin is again in focus ? (Refration index of water is 4/3)

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