Advertisements
Advertisements
Question
Given below is a diagram depicting a defect of the human eye? Study the same and answer the question that follow :

Name the type of lens used to correct this eye defect.
Advertisements
Solution
This defect can be corrected by a suitable concave lens.
APPEARS IN
RELATED QUESTIONS
The kind of lens required to correct Myopia
What is the other name of old age hypermetropia?
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?
A person can read a book clearly only if he holds it at an arm's length from him. Name the defect of vision:
if the person is a young man
A student cannot see a chart hanging on a wall placed at a distance of 3 m from him. Name the defect of vision he is suffering from. How can it be corrected? Draw ray diagrams for the (i) defect of vision and also (ii) for its correction.
A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?
Give Reason:
Why do we see clearly in the central region of the retina?
Differentiate between:
Short-sightedness and Long-sightedness.
What type of lens is used to correct Hypermetropia?
Myopia and hypermetropia can be corrected by:
