Question

Write the rules of sign convention for spherical lens(with suitable diagram)​

Answer 1

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Sign Convention for Spherical Mirror:

• Sign is taken as + (positive) behind the spherical mirror. For example if an image is formed behind the mirror, the distance of image is taken as + (positive) from pole along the principal axis.

• The height of is taken as + (positive) above the principal axis and taken as – (negative) below the principal axis.

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