What do u understand by the statement'the refractive index of glass is 1.5 for white light'?
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It means that the speed of light in glass is 1.5 times slower than the speed of light in vacuum, or in other words light is 2323 as fast in glass. Instead of roughly 300,000 km per second, light only covers 200,000 km per second in glass.
One of the reasons this matters is that light cleverly chooses the fastest way to get anywhere (roughly speaking), so since it’s slower in glass than in air, it bends as it enters glass. Just as you would if you were running on the beach and then swimming to get to someone.
One of the reasons this matters is that light cleverly chooses the fastest way to get anywhere (roughly speaking), so since it’s slower in glass than in air, it bends as it enters glass. Just as you would if you were running on the beach and then swimming to get to someone.
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janmayjaisolanki78:
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