1.

Find the new focal length of a convex lens of focal length 20 cm and refractive index 1.5 when it is immersed in water.[refractive index of the water is 43]

Answer»

Find the new focal length of a convex lens of focal length 20 cm and refractive index 1.5 when it is immersed in water.

[refractive index of the water is 43]



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