MEDIUM
10th Assam Board
IMPORTANT
Earn 100
What is Presbyopia? Draw the ray diagram to show how Myopia is corrected.
Important Questions on The Human Eye and the Colourful World
EASY
10th Assam Board
IMPORTANT
Why is a normal eye not able to see clearly the objects placed closer than ?
MEDIUM
10th Assam Board
IMPORTANT
The far point of a myopic person is in front of the eye. What is the nature and power of the lens required to correct the problem? Why do we have two eyes for vision and not just one?
HARD
10th Assam Board
IMPORTANT
What are the defects of vision? A person needs a lens of power, for correcting his distant vision. For correcting his near vision, he needs a lens of power, . What is the focal length of the lens required for correcting distant vision?
EASY
10th Assam Board
IMPORTANT
The least distance of distinct vision for a young adult with normal vision is about
EASY
10th Assam Board
IMPORTANT
What is meant by power of accommodation of eye?
HARD
10th Assam Board
IMPORTANT
Draw the ray diagram to show how hypermetropia is corrected.Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is . What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is .
HARD
10th Assam Board
IMPORTANT
Why does the sun appear reddish early in the morning? Draw the ray diagram of an arrangement for observing scattering of light in colloidal solution.
EASY
10th Assam Board
IMPORTANT
The change in focal length of an eye-lens is caused by the action of the_____.
