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The value of “least distance of distinct vision” for young adult human being is ………………

Monjur Alahi

The value of “least distance of distinct vision” for young adult human being is ………………

A) 25 cm 

B) 5 cm 

C) 50 cm 

D) infinity


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Salim Ahmed Kawsar

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Correct option is  A) 25 cm

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The value of “least distance of distinct vision” at young age i.e below 10 years ………………. 

Correct option is  D) 7 to 8 cm

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The value of “least distance of distinct vision” at old age ………………..

Correct option is  D) 1 to 2 m

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The value of least distance of distinct vision does not change with age. 

D) X is false, Y is true

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The range of vision for a young adult with normal vision …………………….. 

C) 25 cm to infinity

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The angle of vision for a healthy human being is………………. 

Correct option is  A) 60°

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The value of focal length of the eye lens when an object is placed at a distance of least distance of distinct vision is

Correct option is  C) 2.27 cm

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The value of focal length of the eye lens when the object is between infinity and the point of least distance of distinct vision is …………………… 

D) between 2.27 cm to 2.50 cm

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The least distance of distinct vision at below 10 years age is 7- 8 cm 

D) Angle of vision and least distance of distinct vision are same for all persons

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The defect in which people can not see objects between near point and point of least distance of distinct vision is called ……………………

B) hypermetropia

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For a hypermetropic eye the image is formed……………., when the object is placed between near point and point of least distance of distinct vision. 

C) beyond the retina

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