If I bring my face close to a concave mirror, the image would be enlarged and vertical whereas if I use a convex mirror, then the image would be diminished $\&$ vertical, why?

Q. What would your image look like if you stood close to a large:

(a) convex mirror?
(b) concave mirror?

Q.

A real and enlarged image can be obtained by using a :

(a) convex mirror

(b) plane mirror

(c) concave mirror

(d) either convex or plane mirror.

Q. If a diminished and a highly enlarged image should be obtained using a concave mirror of radius of curvature 15 cm, at which positions should the object be placed respectively?

Q. Use the mirror equation to deduce that:

A) An object placed between f and 2f of a concave mirror produces a real image beyond 2f.

B) A convex mirror always produces a virtual image independent of the location of the object.

C) The virtual image produced by a convex mirror is always diminished in size and is located between the focus and the pole.

D) An object placed between the pole and focus of a concave mirror produces a virtual and enlarged image.

Q.

Himanshu was challenged by his friend Sushweta to differentiate between a plane, concave and convex mirror without touching them. He placed a candle in front of each of the mirrors and observed that they showed different behavior. Mirror I always formed a diminished image, Mirror II always formed an image of same height while for Mirror III the image was enlarged when the candle was placed close to mirror. Can you help him identify them?