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Question
Light travels more quickly through water than through glass.
- Which is optically denser: water or glass?
- If a ray of light passes from glass into water, which way will it bend: towards the normal or away from the normal?
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Solution
- Glass is optically denser than water. (The speed of light in an optically rarer medium is more than the speed of light in a denser medium.)
- If a ray of light passes from glass to water, it will bend away from the normal because glass is a denser medium than water.
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