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The dilation and constriction of the pupil of the eye is due to the effect of ______ on the human body.
  • a)
    Light
  • b)
    Temperature
  • c)
    Noise
  • d)
    Pressure
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The dilation and constriction of the pupil of the eye is due to the ef...
The correct answer is 
Light.
Key Points
  • The dark circle in the iris's middle is the pupil of the eye.
  • The colorful part of the eye, or iris, has a structure and hue that are particular to each individual.
  • A portal that admits and controls the flow of light to the retina is the pupil of the eye.
  • This step in the process contributes to how one see images.
  • To regulate the amount of light allowed to enter the eye, the pupil opens and closes.
  • Light enters the eye from the outside and travels through the pupil before passing through the transparent lens.
  • This light is then focused on the retina, which is the layer of light sensitive cells at the back of the eye.
  • Pupils expand or dilate to let in more light when it is dark.
  • By doing this, vision is enhanced.
  • pupil contracts to a very small diameter in strong light to shield our retina's delicate photoreceptors.
  • In response to outside light, the pupil adjusts in size. 
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The dilation and constriction of the pupil of the eye is due to the effect of ______ on the human body.a)Lightb)Temperaturec)Noised)PressureCorrect answer is option 'A'. Can you explain this answer?
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