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Geometrical Optics question

2023 · 24 Jan · Shift 2 · Q64
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Geometrical Optics question

2023 · 24 Jan · Shift 2 · Q64

JEE MainPhysicsGeometrical OpticsNumerical+4 / −1
A convex lens of refractive index 1.5 and focal length 18cm in air is immersed in water. The change in focal length of the lens will be ‾\underline{\hspace{2cm}}​ cm. (Given refractive index of water =43=\frac{4}{3}=34​)
Numerical answer
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