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12 questions from this quiz
Light changing direction between media
n=sinisinrn = \frac{\sin i}{\sin r}n=sinrsini
Line perpendicular to surface
The normal
The ratio sinisinr\frac{\sin i}{\sin r}sinrsini
Ray box or laser pointer
To improve accuracy and reduce errors
sini\sin isini vs sinr\sin rsinr
The refractive index
Systematic error
n>1n > 1n>1
The origin
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