A person walking in a dark corridor enters into a brightly lit room:
  1. State the effect on the pupil of the eye.
  2. How does this affect the amount of light entering the eye?
Download our app for free and get startedPlay store
  1. Pupil becomes smaller.
  2. The amount of light entering the eye is reduced.
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    Explain why the planets do not twinkle but the stars twinkle.
    View Solution
  • 2
    Why does the sky appear dark instead of blue to an astronaut?
    View Solution
  • 3
    Among animals, the predators (like lions) have their eyes facing forward at the front of their heads, whereas the animals of prey (like rabbit) usually have eyes at the sides of their head. Why is this so?
    View Solution
  • 4
    Explain the nature of image formed by human eye lens.
    View Solution
  • 5
    Draw ray diagrams each showing:
    Myopic eye.
    View Solution
  • 6
    Why do we observe random wavering or flicking of the objects near a fire or on a very hot day?
    View Solution
  • 7
    The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?
    View Solution
  • 8
    Why are the ‘danger signal’ lights red in colour?
    View Solution
  • 9
    Explain with the help of a diagram, how we are able to observe the sunrise about two minutes before the sun gets above the horizon.
    View Solution
  • 10
    Water in deep sea is blue in colour. Why?
    View Solution