Q8 of 61 Page 63

Why does a ray of light bend when it travels from one medium to another?

when a light ray travels from one medium to another, it shows some deviation from its path this phenomenon is called refraction of light.


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6

If an object is placed at the focus of a concave mirror, where is the image formed?

 7

Copy this figure in your answer book and show the direction of the light ray after reflection


 9

What is the speed of light in a vacuum? Who first measured the speed of light?

 10

Concave mirrors are used by dentists to examine teeth. Why?