Today i am going to tell you about light and heat!
Transfer of Light
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pencil in the water |
Normally light travel in a straight line. however if light travels from one medium to another medium, it will bend like the picture. in the picture it shows that the pencil inside the glass of water looks its bent. this happen because as it travel from one medium (water) to another medium (air) before reaching our eye. This bending of light at the
boundary of the two media is called
refraction.
light also bends when it passes through a lens. when we look through a lens, we can see that the image of the object is
distorted. It is because the light travels from air to glass.
Transfer of Heat
Just like light heat also travels from one object to another. Heat travels from a place of higher temperature to another place that has lower temperature through
conduction,convection and
radiation
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