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 ___.
- The light coming from the tip enters straight away into the eyes
- The light coming from the tip bends on entering air from water
- The light coming from the tip does not bend on entering air from water
- 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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