Physics · 2016
NEET 2016 · 24 July · Code AA · Q34
Two identical glass (μ_g =3 / 2) equiconvex lenses of focal length f each are kept in contact. The space between the two lenses is filled with water…
Two identical glass $\displaystyle \left(\mu_{\mathrm{g}}=3 / 2\right)$ equiconvex lenses of focal length $\displaystyle f$ each are kept in contact. The space between the two lenses is filled with water ($\displaystyle \mu_{\mathrm{w}}=4 / 3$). The focal length of the combination is
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 3 f / 4$
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