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- Hi Jennie!! How are you doing? I studied about Light, Shadows and Reflections in Physics today, it was really fun!!!
- Really Lisa? I have physics class tomorrow and I want to more because its so exciting!
- Yeah, sure, I can teach you more about it.
- Really Lisa?? Thank you! Can you explain what is light shadows and reflections respectively??
- Light is a form of energy that gives us the power of vision.reflection, is an abrupt change in the direction of propagation of a wave that strikes the boundary between different mediums.Shadow is when a dark shape on a surface which is made when something stands between a light and the surface.
- a beam of light is a stream of light energy which is broader and represented by a number of rays.
- I also learnt some facts -the property of light is that it travels in a straight line is known as rectilinear propagation of light.
- light sources are of 2 types - luminous and Non- Luminous.Luminous objects are objects that produce their own light. Such as Sun and Torch.Non-Luminous objects are objects that DO NOT Produce their own light.Such as - table, Chair, Moon.
- Yes, Jennie, you are absolutely correct!!1 more fun fact is - It take 8 minutes and 32 seconds for sunlight to reach Earth!! isn't that cool?
- THANK YOU LISA FOR TEACHING ME!!
- Welcome Jennie , and never forget these points!!
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