Find 10 Hidden Fish in The Image #shorts | Find The Hidden Object Game | Optical Illusion | Puzzle

Assertion : - Hidden hunger is one of the greatest problem in developing countries specially. Reason : Developing countries cannot afford to buy enough fruits, vegetables, lemumes, fishes and meat.

A thin lens produces an upright image of the same size as the object. Then from the optical centre of the lens, the distance of the object is .

Find out the position of the image of an object situated at A in the plane mirror

A concave mirror forms a real image, on a screen of thrice the linear dimension of a real object placed on its principal axis. The mirror is moved by 10 cm along its principal axis and once again a sharp image of the object is obtained on the screen. This time the image is twice as large as the object. Find the focal length of the mirror.