Which one does NOT belong?

Exercise and reference answers

Questions

1. Items

   1. Accommodation
   2. Myopia
   3. Hypermetropia
   4. Presbyopia

   Reason

   Accommodation is the normal ability of the eye lens to change focal length. The other three are defects of vision.

   Odd item

   Accommodation

2. Items

   1. Cornea
   2. Prism
   3. Iris
   4. Retina

   Reason

   A prism is a piece of glass used to disperse light. The other three are parts of the eye.

   Odd item

   Prism

3. Items

   1. Violet bends most
   2. Red bends least
   3. Red bends most
   4. Green is in the middle

   Reason

   Through a prism the red light bends the least while the violet bends the most, so the last statement is the false one.

   Odd item

   Red bends most

Instructions

Tap the item that does not belong with the rest.

Explanation