Name the defects of vision. - Myopia(or) Short sightedness - Hypermetropia (or) Long sightedness - Presbyopia - Astigmatism
What is near point of the eye? Near point of the Eye is the closest point at which an object can be seen clearly. For a normal eye, the near point lies at 25 cm from the eye (least distance of distinct vision).
What is the far Point of the eye? It is the farthest point at which the object can be seen clearly. For a normal eye, the far point lies at infinity.
Define accommodation of an eye. The ability of the eye to focus both near and distant objects, by adjusting the focal length is called the accommodation of the eye or the ability of the ciliary muscles to change the focal length of the eye lens is called accommodation.
What is a persistence of vision?
The image of an object seen persists on the retina for 1/16 second even after the removal of the object. This continuance of sensation of an eye for some time is called persistence of vision
All About Human Eye - CBSE Class class 8 - Science Human eye can be considered as an optical instrument. Light rays coming from the object to be seen enter the eye through Cornea and fall on the eye lens through the pupil of the eye. Cornea The transparent spherical membrane co...
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Find x in the following figures - Class 8th CBSE Mathematics
Q. What are the advantages of using CNG and LPG as fuels? - CBSE Class 8 - Science - Coal and Petroleum Ans: - They are used as non-polluting fuels to transport vehicles. - CNG is used for power generation and is a cleaner fuel. - LPG can be used directly for burning in home...
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Identify Idioms in the following sentences. He is prepared to do anything for the sake of his friends.
Expression on left and right side of equality respectively are called:
Choose the correct example of an illative conjunction
Choose the correct example of an illative conjunction
From the word puzzle given as find atleast eight words which are ‘farmer’s friends.’ Classify them into living and non living.
Propagation of ginger is generally done using
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Which one of the following condition is not essential to grow maize?