Snell’s law
Instruction: Drag the ray box or the slider to change the angle of incidence i. Repeat several times and press <Record> each time. Press <Plot graph> to plot a graph of sin i against sin r. Find the relationship between sin i and sin r.
Instruction: Drag the ray box or the slider to change the angle of incidence i. Repeat several times and press <Record> each time. Press <Plot graph> to plot a graph of sin i against sin r. Find the relationship between sin i and sin r.
Reset
0
Record Plot graph
i r sin i sin r
{{item.FinalIncedentAngle}}° {{item.refractionAngle}}° {{item.sini}} {{item.sinr}}

sin i against sin r

Δt
Δv
sin i
1.0
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1.0
sin r
Show experiment
Show slope

Slope of sin i‒sin r graph

=  Δsin iΔsin r
=  
=