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प्रश्न
Have a look at the posture of this girl who is reading a book and answer the questions which follow:
Name the problem she is facing.
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उत्तर
Myopia
संबंधित प्रश्न
Which defect of vision can be rectified:
by using a convex lens?
What is the other name for
hypermetropia
To read a book held at a distance of 25 cm, will she need converging or diverging spectacle lenses?
Differentiate between members of the following pair with reference to what is asked in bracket.
Myopia and hyperopia (cause of the defect)
Enumerate the common defects of vision, their causes and the possible methods of correcting them.
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.
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?
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.
Myopia and hypermetropia can be corrected by:
Draw ray diagram showing myopic eye.
