Medical Quiz

Human Eye and Colourful World Quiz


Myopia defect may arise due to

A. excessive curvature of the eye lens

B. elongation of the eyeball

C. More Contraction of ciliary muscles

D. All of the above

E. Only a) and b)

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

Fine particles scatter which light more?

A. red

B. yellow

C. blue

D. violet

In the bright light, iris _____ light to allow ______ light to enter the eye

A. contract, more

B. expand, less

C. contract, less

D. expand, more

cataract is

A. the crystalline lens of people at old age becomes milky and cloudy

B. partial or complete loss of vision

C. both a) and b)

D. None of the above

Appearant position of the object when looking through hot air, fluctuates because

A. Dispersion

B. reflection

C. refraction

D. None of the above

Angle of deviation in prism is the angle between

A. Incident ray and refracted ray inside the prism

B. incident ray and emergent ray

C. refracted ray incide the prism and emergent ray

D. None of above

What will allow eye to change the focal length of eye lens? This ability of eye lens is called as?

A. pupil, accomodation

B. ciliary muscles, vision

C. pupil, adjustable lens

D. ciliary muscles, accomodation

A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision

A. Concave

B. Convex

C. Combination of both lens

D. None of the above

For correction of myopic and hypermetropia defect eye, ______ and _______ lens are used

A. Concave, convex

B. Convex, Concave

C. Concave,Concave

D. Convex, Convex

___________ regulates and controls the amount of light entering the eye.

A. Iris

B. pupil

C. cornea

D. retina

A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power

A. 0.5 D

B. -0.5 D

C. 0.2 D

D. -0.2 D


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