Physics with Physics

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Equivalent resistance, Circuit simplification, successive reduction method

Refraction through lens, converging meniscus, combined focal length, converging meniscus is filled with water

Refraction through lens, converging meniscus, combined focal length, A converging meniscus is filled with water, Refractive index of liquid, object and image coincide, the path of incident and reflected rays are same when object and image coincide