Physics, asked by sakshinarware9003, 11 months ago

What is the focal length of a concave lens kept in air where R1=30cm and R2=60cm. Refractive index of lens is 1.5

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Answered by syedmaunaqeel

Answer:

Explanation:

What is the focal length of a double concave lens kept in air with two spherical surfaces of radii R1=30cm and R2=60cm. Take refractive index of lens as n =1.5. plzzz i want it know

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