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    science
    Grade-7
    Easy

    Question

    The actual tip of a pencil lies at the bottom of a tumbler filled with water. However, its position appears to be raised because ___.

    1. The light coming from the tip enters straight away into the eyes
    2. The light coming from the tip bends on entering air from water
    3. The light coming from the tip does not bend on entering air from water
    4. None of the above

    Hint:

    Bending of light

    The correct answer is: The light coming from the tip bends on entering air from water

      • A pencil partly immersed in water appears to be bent at the water surface.
      • Because of the refraction/bending of light which takes place when light rays from the tip pass from the tank of water into the air.
      • So, the correct option is b.

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