Human Eye and C...

Focal length of eye lens is changes by.

Which of the following phenomena cannot be explained by scattering of light?

A person can see clearly objects between 15 and 100 cm from his eye. The range of his vision if he wears close fittings spectacles having a power of $$0.8$$ dipole is

A large-angle prism deviates a light ray

Ocean appears blue due to _____________________.

Which defect of vision of eye is shown respectively?

In the experiment of prism incident red color ray instead of white light through a prism. Which color band will you observe on screen?

Match the column I with column II and select the correct option from the codes given below. 

The near point of a hypermetropic person is 75 cm from the eye. What is the power of the lens required to enable the person to read clearly a book held at 25 cm from the eye?

The near point of a person is $$75cm$$. In order that he may be able to read book at a distance $$25cm$$. The power of spectacles lenses should be