Observe the given below diagram and answer the following questions.

a) Identify the type of mirror.

b) What is the position and nature of the image formed.

c) Define the type of image formed.

Which effect is responsible for blue colour of smoke?

($F =$ principal focus, $C =$centre of curvature, $P =$ pole)

Focal length of one convex mirror is $3 \mathrm{m}$ and object distance is $5 \mathrm{m}$, then find the image distance.

If a mirror forms erect image for objects placed between pole and focus, and it forms real-inverted image for object placed anywhere between focus and infinity, then the mirror is: