How is the focal length of a spherical mirror affected, when the wavelenght of the light used is increased?

What is the focal length of a plane mirror ?

What is the focal length of a plane mirror?

Define the focal length of mirror

Show that the focal length of a spherical miror is half the radius of its curvature.

Show that the focal length of a conave spherical mirror is half of the radius of its ccurvature.

What changes in the focal length of a concave mirror when the incident violet light on them is replaced by red light?

Define focus, focal length and aperture of a spherical mirror.

How will the resolving power of a compound microscope be affeced,when the frequency of light used to illuminate the object is increased,and