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प्रश्न
Give Technical Term:
The type of lens used to correct myopia is
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उत्तर
Concave Lense
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संबंधित प्रश्न
What is the other name for
myopia
What are the two most common defects of vision (or defects of eye)? How are they corrected?
What is short-sightedness? State the two causes of short-sightedness (or myopia). With the help of ray diagrams, show:
(i) the eye-defect short-sightedness.
(ii) correction of short-sightedness by using a lens.
What is long-sightedness? State the two causes of long-sightedness (or hypermetropia). With the help of ray diagrams, show:
(i) the eye-defect long-sightedness.
(ii) correction of long-sightedness by using a lens.
You do not enjoy watching a movie from a very short distance from the screen in a cinema hall. Why?
Draw a ray diagram to show how Hypermetropia is defect can be corrected using a lens.
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.
Give Reason:
Older people require glasses to read and write.
Give Reason:
Deficiency of vitamin A causes night blindness.
A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power:
