Both radii of curvature of a convex lens are \( 20 \mathrm{~cm} \) ...

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Both radii of curvature of a convex lens are \( 20 \mathrm{~cm} \) and refractive index of the material of the lens is 1.5. Rays parallel to the axis of the lens will converge at
\( \mathrm{P} \)
(A) \( 10 \mathrm{~cm} \)
(B) \( 20 \mathrm{~cm} \)
W
(C) \( 30 \mathrm{~cm} \)
(D) \( 40 \mathrm{~cm} \)
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