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What is the Other Name of Old Age Hypermetropia? - Science

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प्रश्न

What is the other name of old age hypermetropia?

उत्तर

Presbyopia is the other name of old-age hypermetropia.

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अध्याय 6: The Human Eyes And The Colorful World - Exercise 2 [पृष्ठ २७९]

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 6 The Human Eyes And The Colorful World
Exercise 2 | Q 11 | पृष्ठ २७९

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संबंधित प्रश्न

Write the importance of ciliary muscles in the human eye. Name the defect of vision that arises due to gradual weakening of the ciliary muscles. What types of lenses are required by the person suffering from this defect to see the objects clearly?

Akshay, sitting in the last row in his class, could not see clearly the words write on the blackboard. When the teacher noticed it, he announced if any student sitting in the front row could volunteer to exchange his seat with Akshay. Salman immediately agreed to exchange his seat with Akshay. He could now see the words written on the blackboard clearly. The teacher thought it fit to send the message to Akshay’s parents advising them to get his eyesight checked.

In the context of the above event, answer the following questions:-

(a) Which defect of vision is Akshay suffering from? Which type of lens is used to correct this defect?

(b) State the values displayed by the teacher and Salman.

(c) In your opinion, in what way can Akshay express his gratitude towards the teacher and Salman?


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A person can read a book clearly only if he holds it at an arm's length from him. Name the defect of vision:
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Name the following:

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What eye defect is hypermetropia? Describe with a ray diagram how this defect of vision can be corrected by using an appropriate lens.


State the main functions of the following: 
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Name an old age eye defect. Why is it caused?


In Myopia the human eye _______.


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