Multiple choice

Consider the following statements:

  1. When one enters a dark room, one is not able to see anything but, after sometime vision improves. This is because the pupil of the eye inflates.
  2. A myopic eye can be rectified by concave lens to get the distant vision.

Which of the given statements is/are true?

  1. Only (1)

  2. Only (2)

  3. Both (1) & (2)

  4. Neither of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  1. Statement (1) is wrong. When one enters a dark room, one is not able to see anything but, after sometime vision improves. This is because the pupil of the eye diflates.
    1. Statement (2) is correct. In myopia, the eye lens become too thick & its focal length is reduced. The short sightedness occurs due to excessive convergence of light rays by the eye lens, it can be corrected by using a diverging lens, i.e. a concave lens.

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