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How do you verify experimentallybthat the focal length of a convex lens is increased when it is kept in water???​

Answer» <html><body><a href="https://interviewquestions.tuteehub.com/tag/since-644476" style="font-weight:bold;" target="_blank" title="Click to know more about SINCE">SINCE</a> from lens makers formula we can <a href="https://interviewquestions.tuteehub.com/tag/observe-582964" style="font-weight:bold;" target="_blank" title="Click to know more about OBSERVE">OBSERVE</a> that focal length of lens is inversely proportional to refractive index of <a href="https://interviewquestions.tuteehub.com/tag/medium-1092763" style="font-weight:bold;" target="_blank" title="Click to know more about MEDIUM">MEDIUM</a> of lens . Hence net refractive index of lens <a href="https://interviewquestions.tuteehub.com/tag/decreases-946143" style="font-weight:bold;" target="_blank" title="Click to know more about DECREASES">DECREASES</a> when it is dipped in a denser medium than air, hence focal length increases.hope this helps u if yes then mark me brainest answer plz</body></html>


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