what do you understand by the focus of a lens? how will you find the focus of a convex lens
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The principal focus of a convex lens is defined as the point on which the principal axis of the light is parallel to the principal axis that converges after the refraction from the lens. The principal focus of concave lens is when the light rays get diverged and appear to form a single point.
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this is your answer maybe
Step-by-step explanation:
The focus of a lens is the point on the axis of the lens to which parallel rays of light converge or from which they appear to diverge after refraction.
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