Human Eye and C...

The amount of light entering the eye is controlled by

Light from an object enters the eye through the pupil and travels to the back of the eye, forming an image on the retina. What is the orientation of the retinal image, as compared to that of the original object?

Which colour is strongly scattered by the molecules of air and other fine particles?

As we increase the distance of an object from the eye, the image distance:

The blue colour of the sky is due to the fact that:

For which colour, the refractive index of glass is maximum?

The near point of a human eye is at a distance of

When light rays from stars enter into earth's atmosphere, it travels from

At sunrise or sunset, the sun looks reddish, because: