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प्रश्न
Name any two defects of vision which can be corrected by using spectacles.
उत्तर
Myopia and hypermetropia are two defects of vision that can be corrected by using spectacles
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संबंधित प्रश्न
A student is unable to see clearly the words written on the blackboard placed at a distance of approximately 4 m from him. Name the defect of vision the boy is suffering from. Explain the method of correcting this defect.
Draw ray diagram for the:-
(i) defect of vision and also
(ii) for its correction.
A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision?
To read a book held at a distance of 25 cm, will she need converging or diverging spectacle lenses?
Observer the following diagram and answer the questions.
a) Which eye defect is shown in this diagram?
b) What are the possible reasons for this eye defect?
c) How this defect is corrected, write it in brief?
Distinguish between the following pair of words:
Myopia and hypermetropia
Give Technical Term:
The type of lens used to correct myopia is
Choose the Odd One Out:
Differentiate the eye defects: Myopia and Hypermetropia
A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her? Draw ray diagram for the correction of this defect.
When do we consider a person to be myopic or hypermetropic? Explain using diagrams how the defects associated with myopic and hypermetropic eye can be corrected?
