Human Eye and Vision
Physics ⇒ Light and Optics
Human Eye and Vision starts at 8 and continues till grade 12.
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See sample questions for grade 12
A person can see distant objects clearly but cannot see nearby objects distinctly. Which defect does the person suffer from?
Describe the path of light as it enters the human eye and forms an image on the retina.
Describe the role of the aqueous and vitreous humors in the human eye.
Explain the process of accommodation in the human eye.
Explain why a myopic person cannot see distant objects clearly.
Explain why we do not notice the blind spot in our day-to-day vision.
If the refractive index of the lens material increases, what happens to the focal length of the lens?
Name the part of the eye where the photoreceptor cells are located.
State the function of the rods and cones in the retina.
A person with presbyopia may require (1) Only convex lenses (2) Only concave lenses (3) Bifocal lenses (4) Cylindrical lenses
If the focal length of the eye lens increases, the power of the lens will: (1) Increase (2) Decrease (3) Remain the same (4) Become zero
The image formed on the retina of a normal human eye is: (1) Real and inverted (2) Virtual and erect (3) Real and erect (4) Virtual and inverted
The power of accommodation of the normal human eye is about (1) 2 D (2) 4 D (3) 6 D (4) 8 D
A person is unable to distinguish between red and green colors. This condition is known as ______.
The ability of the eye to focus on both near and distant objects is called ______.
The least distance of distinct vision for a normal human eye is about ______ cm.
The minimum distance at which the eye can see objects clearly without strain is called the ______.
True or False: The blind spot in the human eye is the region where the optic nerve leaves the eye and no photoreceptor cells are present.
True or False: The lens of the human eye is a biconcave lens.
True or False: The lens of the human eye is flexible and its curvature can be changed by the action of ciliary muscles.
