Find the speed of light in ice (n = 1.31) and in crown glass (n = 1.52)…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Find the speed of light in ice () and in crown glass (). Use . In which is light slower?
Need a reminder? The key ideaShow
The absolute refractive index is , with . It has no unit and is never below . A larger means slower light: optically denser. From material 1 into material 2, .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Ice. .
Step 2. Crown glass. .
Answer: in ice and in crown glass. Light is slower in the glass.
Check. The larger index gives the slower light.
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