LENSES

ASSIGNMENT

Qn. Why is the cornea curved?

To refract light rays.

Qn. Why are images formed at the blind spot cannot be seen?

    There are no rods and cones.

Qn. Why is the choroid black?

     To prevent internal reflection of light.

Qn. Although the eye forms inverted images we see them as upright. Why does this happen?

   They are corrected by the brain after interpretation.

Qn. Why does the eye form upside down images?

  It’s because light travels in a straight line.

  1. Briefly give the function of the following parts of the eye

 

  • Iris
  • Lens
  • Pupil
  • Retina
  • optic nerve

 

  1. Which part of camera has the same function as the iris?
  2. What causes short sightedness and how can it be corrected?

 

Olepor Ben

I am a dedicated professional primary teacher with an experience of 6 years teaching integrated science currently teaching at Vision for Africa primary school. I participate in Item setting and marking exams at school, district and national level with Uganda National Examination Board and still moving. So with the experience and qualification above; I feel competent in changing lives through integrated science.

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Olepor Ben
4 years ago

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