1.

The central portion of a lens is wrapped in black paper as shown above. An object is placed at 90 cm with the centre of curvature at 40 cm. Find the no. of images formed.

Answer»

The central portion of a lens is wrapped in black paper as shown above. An object is placed at 90 cm with the centre of curvature at 40 cm. Find the no. of images formed.




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