Physics
Grade-10
Easy
Question
The speed of light in glass is ____ that in water.
- Less than
- More than
- Equal to
- Cannot say
Hint:
Refraction depends on the density of the medium.
n= 
The correct answer is: Less than
The speed of light in glass is less than that of water.
- The speed of light will be more in a less dense medium and it will be less in a more dense medium.
- The density of glass is more than the water.
- So the speed of light in the glass becomes less than the water.
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