What was the significance of placing a mirror in the zoo at Lusaka. zambia​

What does the notice 'The world's most dangerous animal' at a cage in the zoo at Lusaka, Zambia, signify?

What will be the change in focal length of a concave mirror when it is placed in water ?

An object is placed in front of a concave mirror between the pole and the focus of the mirror. What is the nature of the image formed by the mirror ?

In the figure, an object is placed at distance 25 cm from the surface of a convex mirror, and a plane mirror is set so that image formed by the two mirrors lie adjacent to each other in the same plane. The plane mirror is placed at 20 cm from the object. What is the radius of curvature of the convex mirror ? .

If mirror is placed on the MN, then