$A$ convex mirror always forms a virtual and erect image.

$A$ student wants to project the image of a candle flame on a screen $60\, cm$ in front of a mirror by keeping the flame at a distance of $15\, cm$ from its pole.
$(a)$ Write the type of mirror he should use.
$(b)$ Find the linear magnification of the image produced.
$(c)$ What is the distance between the object and its image?
$(d)$ Draw a ray diagram to show the image formation in this case.

$A$ plane mirror can be used to form a real image equal in size as of the object.

What is the focal length of a plane mirror?

If a convex lens forms a real and magnified image of an object,where is the object placed?

$A$ plane mirror as well as a convex mirror can produce a real image if the object is virtual. How?