6A - Geometrical optics

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01. Speed of light

02. Straight line propagation

10. Reflection from flat surfaces

6A10.30 Corner cube reflector

20. Reflection from curved surfaces

6A20.35 Optic Mirage

40. Refractive index

42. Refraction at flat surfaces

44. Total internal reflection

6A44.40 Light pipe

46. Rainbow

60. Thin lens

6A60.31 Projected arrow with a lens

61. Pinhole

65. Thick lens

70. Optical instruments