Course content

65 lessons

3.1 · General properties of waves

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3.2.1-3.2.2 · Reflection and refraction of light

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The image in a plane mirror

11m

Constructions and calculations with plane mirrors

12m

Refraction of light: the angle of refraction

12m

Refraction by transparent blocks

14m

Refractive index and the speed of light

12m

Calculating refractive index: n = sin i / sin r

13m

Critical angle and total internal reflection

13m

Calculating the critical angle: n = 1 / sin c

12m

Optical fibres

13m

Reflection and refraction of light: practice

Reflection and refraction of light: exam practice

15m

Reflection and refraction of light: summary

3.2.3-3.2.4 · Thin lenses and dispersion of light

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3.3 · Electromagnetic spectrum

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3.4 · Sound

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3.2.1-3.2.2 · Reflection and refraction of lightLesson 4 of 14

Constructions and calculations with plane mirrors

Find an image by drawing, build a periscope, and see why a mirror turned 10° turns the beam 20°.

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