When you enter from bright sunshine into a dark room,you are not able to see clearly for some time. Why?

  • A
    The pupil is unable to dilate quickly.
  • B
    The retina takes time to adjust to low light.
  • C
    The iris takes time to contract.
  • D
    The lens takes time to change its focal length.

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Write the value of the near point of distinct vision for a normal eye.

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