Human Eye Quiz
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When light rays enter the eye, most of the refraction occurs at the
A. crystalline lens
B. outer surface of the cornea
C. iris
D. pupil
The shape of eye-ball is nearly _________________
A. Elliptical
B. Oval
C. Circular
D. Spherical
The first part of the eye that light hits.
A. lens
B. cornea
C. pupil
D. retina
The part of your eye that gives it its color. It is a muscle that controls the size of your pupil.
A. cornea
B. lens
C. pupi
D. iris
Least distance of distinct vision for normal eye is
A. 25 cm
B. 50 cm
C. 75 cm
D. infinity
Type of lens used in correction of myopia
A. convex lens
B. concave lens
C. reflecting lens
D. bifocal lens
The splitting of white light into its component colours is called
A. refraction
B. reflection
C. dispersion
D. tyndall effect
What type of lens is used in the shown instrument?
A. concave lens
B. convex lens
C. reflection lens
D. reduction lens
A dark muscular membrane which controls size of pupil
A. eye
B. iris
C. cornea
D. retina
The lens of your eye is convex. Because of this, what happens to light as it passes through the lens?
A. Light is absorbed.
B. Light is reflected.
C. Light is refracted.
D. Light is transmitted.
In dim light, your pupil will be
A. larger
B. smaller
What type of lens creates the image seen in the eyeglasses?
A. convex
B. concave
C. reflection
D. plane
The person who is suffering from the following disease cannot donate eyes.
A. diabetes
B. asthma
C. hypertension
D. tetanus
This part of the eye carries the message from your eye to the part of your brain that controls vision.
A. cornea
B. lens
C. optic nerve
D. retina
Which of the following phenomena of light are involved in the formation of a rainbow?
A. Reflection, refraction and dispersion
B. Refraction, dispersion and reflection
C. Refraction, dispersion and internal reflection
D. Dispersion, scattering and total internal reflection
Reason behind advance sunrise and delayed sunset
A. atmospheric refraction
B. total internal reflection
C. dispersion
D. reflection
phenomena observed in formation of rainbow is……………………
A. dispersion,relection
B. dispersion,refraction,reflection
C. dispersion,refraction,internal reflection
D. dispersion,internal reflection
In bright light, your pupil will be
A. larger
B. smaller
Following is far-sightedness
A. Myopia
B. Hypermetropia
C. Presbyopia
D. All of the above
Myopia may arise due to
A. (a)excessive curvature of the eye lens
B. (b)elongation of the eyeball
C. both (a) and (b)
D. none of these
A student traces the path of a ray through a glass prism for four different values of angle of incidence. On analysing the diagrams he is likely to conclude that the emergent ray
A. is always parallel to the incident ray.
B. is always perpendicular to the incident ray.
C. is always parallel to the refracted ray.
D. always bends at an angle to the direction of incident ray.
The image formed on the retina of the human eye is
A. virtual and inverted
B. real and inverted
C. virtual and erect
D. real and erect
A student sitting on the last bench can read the letters written on the blackboard but is not able to read / the letters written in his textbook. Which of the following statements is correct?
A. The near point of his eyes has receded away.
B. The near point of his eyes has come closer to him.
C. The far point of his eyes has come closer to him.
D. The far point of his eyes has receded away.
Type of lens used in correction of hypermetropia
A. concave lens
B. reflecting lens
C. bifocal lens
D. convex lens
Band of color in a rainbow, or from a light passing through a prism.
A. Spectrum
B. Space
C. Prism
D. Refraction
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