English Medium Class 10 - CBSE Question Bank Solutions

Name the defect of vision in a person: 

 whose near point is more than 25 on away.  

Name the defect of vision in a person: 

whose far point is less than infinity

 Which defect of vision can be rectified: 

by using a concave lens?

Which defect of vision can be rectified: 

 by using a convex lens?

What is the other name for 

 myopia

What is the other name for 

 hypermetropia

What is the scientific name of 

short-sightedness

What is the scientific name of 

long-sightedness?

Name the defect of vision in which the eye-lens loses its power of accommodation due to old age.

Name the defect of vision which makes the eye-lens cloudy resulting in blurred vision.

What is the other name of old age hypermetropia?

Name any two defects of vision which can be corrected by using spectacles.

Name one defect of vision (or eye) which cannot be corrected by any type of spectacle lenses.

Name the body part with which the terms myopia and hypermetropia are connected.

What is the far point of a person suffering from myopia (or short-sightedness)?

Where is the near point of a person suffering from hypermetropia (or long-sightedness)?

Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class.

1. Is she short-sighted or long-sighted?
2. What type of lenses-converging or diverging-would an optician prescribe for her?

Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class. 

 What type of lenses-converging or diverging-would an optician prescribe for her?

A man can read the number of a distant bus clearly but he finds difficulty in reading a book.

1. From which defect of the eye is he suffering?
2. What type of spectacle lens should he use to correct the defect?

A man can read the number of a distant but clearly but he finds difficulty in reading a book.  

What type of spectacle lens should he use to correct the  defect?