What is Concave lens ............
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Concave Lens
A lens made by joining the parts of two sperical surface that is thinner in the middle than at the edges it converges the incident rays towards its principal axis
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Concave Lens
>> Concave lens is a lens.. in which one curved surface is bent inwards
>> Concave is also called as diverging lens..as it diverges the light rays
>> Object and distance is taken negative and Focal length is taken positive in concave lens
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