Narendra Kumar Solutions for Chapter: The Human Eye and Colourful World, Exercise 2: Test Your Self Exercise 1

What are the apparatus required in performing the experiment tracing the path of a ray of light passing through a prism?

Define the angle of deviation.

Define the power of accommodation of the human eye. 

What do you mean by the persistence of vision?

Draw a neat labelled diagram of the human eye.  

What is myopia? How is it caused? How can it be corrected? Explain with the help of a diagram.

Make a diagram to show how hypermetropia can be corrected. The near point of a hypermetropia eye is $1 \mathrm{m}$. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is $25 \mathrm{cm}$.