Question

Write the sign convention uesd for spherical in points​

Answer 1

Explanation:

Sign Conventation 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.