sign convention of lens and mirror | light reflection and refraction class 10 #shorts

Reflection of light and Refraction of light .

State the Cartesian sign convention for refraction of light (image formation ) by a lens.

Reflection Of light and Refraction at plane surface

What is the basic difference between reflection and refraction of light?

What are the Cartesian sign convention for refraction of light (image formation) by a lens . Draw diagrams to illustrate the same.

Write the sign conventions for spherical mirrors.