$A$ diminished virtual image can be obtained only in

Where should an object be placed in front of a concave mirror to obtain a real and diminished image?

What is the point,where the rays parallel to the principal axis meet after reflection,called?

$(i)$ Under what condition does a concave mirror produce a virtual and magnified image? Draw a labelled ray diagram to show the formation of the image in the above case. Also,state the position of the object to produce a magnified and real image.
$(ii)$ $A$ ray of light moving along the principal axis is falling on a concave mirror. Draw the path of the reflected ray. Also,state the values of the angle of incidence and reflection in this case.

Define the principal focus of a concave mirror.

$A$ light ray incident normally on a plane mirror suffers a deviation of