under which of the following conditions ,will a convex mirror of focal length f produces an image ,that is virtual,erect and diminished:A)only whn:2f>u>fB)only when:uC)only when:u=fD)always
under which of the following conditions ,will a convex mirror of focal length f produces an image ,that is virtual,erect and diminished:
A)only whn:2f>u>f
B)only when:u
C)only when:u=f
D)always