please tell answers please mera 8 board hai and I have to do this in 15 mins otherwise internal assessment me 0/20
Answers
Answer:
1.An image is formed on the retina with light rays converging most at the cornea and upon entering and exiting the lens. Rays from the top and bottom of the object are traced and produce an inverted real image on the retina. The distance to the object is drawn smaller than scale.
2.The human eye is a sense organ that reacts to light and allows vision. Rod and cone cells in the retina are photoreceptive cells which are able to detect visible light and convey this information to the brain. Eyes signal information which is used by the brain to elicit the perception of colour, shape, depth, movement, and other features. The eye is part of the sensory nervous system.
3.The function of the iris in the eye is to control the amount of light that reaches the retina. It does this by changing the size of the pupil, the transparent window that allows light into the eye's interior.
4.typical, usual or ordinary; what you expect.
5.the angle which an incident line or ray makes with a perpendicular to the surface at the point of incidence.
6.The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.
7.