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प्रश्न
Draw a neat labeled diagram to show how hypermetropia can be rectified.
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उत्तर
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संबंधित प्रश्न
The kind of lens required to correct Myopia
What is the other name for
myopia
Describe the mechanism of focusing the image of a distant object in your eye when you raise your head after reading a book.
The near point of the eye of a person is 50 cm. Find the nature and power of the corrective lens required by the person to enable him to see clearly the objects placed at 25 cm from the eye?
In what two whys is a yellow spot different from the blind spot?
Give Reason:
When you enter into a dark room from bright because of sunlight, you can not see things for a few seconds.
Assertion: Concave mirrors are used as reflectors in torches, vehicle head lights and in search lights.
Reason: When an object is placed beyond the center of curvature of a concave mirror, the image formed is real and inverted.
Draw ray diagram showing myopic eye.
A person needs a lens of power –4.5 D for correction of her vision.
- What kind of defect in vision is she suffering from?
- What is the focal length of the corrective lens?
- What is the nature of the corrective lens?
