Question

the focal length of the convex lens when refractive index of material(n2=3/2) kept im water (n1=4/3) is equal to a.)15cm b.)7.5cm c.)30xm d.)10cm


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Answer 1

Answer:

the focal length of the convex lens when refractive index of materials (n2=3/2) kept in water(n1=4/3) is equal to 15 CM