Fat lens | Desmos

Incident ray

8

Expression 13: StartFraction, "y" Over "x" minus "a" , EndFraction equals tangent "B" left brace, "a" less than or equal to "x" less than or equal to "b" , right brace

13

Reflected ray

14

Expression 19: StartFraction, "y" minus "c" Over "x" minus "b" , EndFraction equals tangent "E" left brace, "b" less than "x" , right brace

19

20

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