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December 20, 2014

December 20, 2014

Posted by **physics** on Thursday, March 12, 2009 at 4:50pm.

what formula shoud i use?

can you please show me in steps how to do this, thanks a lot:

The critical angle of refraction for calcite is 68.4degrees when it forms a boundary with water. Use this information to determine the speed of light in calcite.

thanks!

- physics -
**bobpursley**, Thursday, March 12, 2009 at 5:41pmUse Snell's law. Find the index of refraction in calcite, and from that, the speed of light. Notice at the critical angle, the angle of the refracted ray is 90 deg.

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