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Calculate its focal length if the radii of curvature of a double convex lens are 10 cm, and 20 cm and its refractive index is 1.75.

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MCQs on light reflection using spherical mirrors, refraction, total internal reflection, refraction through prism and lenses, natural phenomena due to sunlight and optical instruments.


Calculate its focal length if the radii of curvature of a double convex lens are 10 cm, and 20 cm and its refractive index is 1.75.






 
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