Human Eye and C...

Due to the different frequency of each colour, all components of white light get _____ at a different angle.

Which of the following observations cannot be explained by Tyndall Effect?

Tyndall effect is shown by:

Which of the following phenomenon is involved in Tyndall effect?

Purple light has a higher index of refraction than green light which has a higher index of refraction than red light.
If the black ray represents white light traveling into the left side of the pictured prisms, which prism most accurately shows the colors of light as they come out of the prism?

In the following ray diagram the correctly marked angles are.

If the image of distant objects is formed in front of the retina, the defect of vision may be

Red light is used as danger signal because it is:

The inability among the elderly to see nearby objects clearly because of the weaking of the ciliary muscles is called

Far point of a person is $$5 m$$. In order that he has normal vision what kind of spectacles should be use