Explain the cartesian sign convention for mirrors.

Define certesian sign convention?

What are the Cartesian sign convention?

State and explain the New Cartesian Sign Convention for spherical lenses.

According to the "New Cartesian Sign Convention" for mirros, when sigh has been given to the focal length of : (i) a concave mirror ? (ii) a convex mirror ?

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

Answer the following questions : State the cartesian sign convention for refraction of light ( image formation ) by a lens .