science
Grade6
Easy

Question

We cannot see anything in a dark room due to _______ of light.

  1. Reverse
  2. Reverb
  3. Absence
  4. Attend

Hint:

Light is important for visibility of an object.

The correct answer is: Absence


    • In the absence of light we cannot see anything in the room.
    • When light falls on any object, it is reflected from the said object and enters our eye.
    • Light stimulates the photoreceptors present in the eye and the image falls on the retina.
    • From the retina brains for the signal and interpret the object and tell us what we have seen.
    • Thus, without light no photoreceptors would stimulate and an image is formed on the retina.
    • Therefore, light is important for vision.

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