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प्रश्न
Name the body part with which the terms myopia and hypermetropia are connected.
उत्तर
The eye is the body part with which the terms 'myopia' and 'hypermetropia' are connected.
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संबंधित प्रश्न
A student suffering from myopia is not able to see distinctly the objects placed beyond 5 m. List two possible reasons due to which this defect of vision may have arisen. With the help of ray diagrams, explain
(i) why the student is unable to see distinctly the objects placed beyond 5 m from his eyes.
(ii) the type of the corrective lens used to restore proper vision and how this defect is corrected by the use of this lens.
(b) If, in this case, the numerical value of the focal length of the corrective lens is 5 m, find the power of the lens as per the new Cartesian sign convention
Name the defect of vision in which the eye-lens loses its power of accommodation due to old age.
Explain with the help of labelled ray diagram, the defect of vision called myopia and how it is corrected by a lens.
What is meant by optical illusion? Give one example.
A person cannot read newspaper placed nearer than 50 cm from his eyes. Name the defect of vision he is suffering from. Draw a ray diagram to illustrate this defect. List its two possible causes. Draw a ray diagram to show how this defect may be corrected using a lens of appropriate focal length.
State one role of ciliary muscles in the human eye.
Distinguish between the following pair of words:
Myopia and hypermetropia
Explain the Term: Astigmatism
What are the causes of ‘Myopia’?
Differentiate the eye defects: Myopia and Hypermetropia
