Question

the radius of curvature of a biconvex lens is 6 CM draw the ray diagram for an object placed on principal Axis at 60 and 3cm distance from the optic centre of the lens​

Answer 1

RAY DIAGRAM:

• Radius of curvature of convex lens is 6 cm.

• Object is kept at 6 cm and 3 cm on the principal axis.

Image formation:

• Whenever object is kept at the centre of curvature of a convex lens, a real, inverted image is formed at the other centre of curvature of the lens.

• When the object is kept at focus of the lens, an image is formed at infinity.

Image characteristics:

• At centre of curvature: Image will be real inverted and is of the same size as that of the object.

• At focus: Image will be at infinity and will largely be enlarged.

REFER TO THE DIAGRAMS:

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