Which of the following (referred to a sphericla mirror) do (does) not depend on whether the rays are paraxial or not?

Which of the following (referred to a spherical mirror) do (does) not depend on whether the rays are paraxial or not?

Which of the following (referred to a spherical mirror) do (does) not depend on whether the rays are paraxial or not?

Which of the following entities related to spherical mirrors do not depend on whether rays are paraxial or not ?

In case of spherical mirrors,which of the followed do/does not depend upon,whether the incident rays are paraxial or not?

Which of the following does not characterise X-rays?

Which of the following does not characterise X-rays?

Which of the following does not characterise X-rays?