Difference between revisions of "5-WAC-06 Diffraction / Refraction Calculations"
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* '''3.22''' recall and use the relationship between critical angle and refractive index | * '''3.22''' recall and use the relationship between critical angle and refractive index | ||
==Starter== | ==Starter== | ||
+ | * Elucidate existing knowledge of trigonometric functions. | ||
+ | * Have pupils copy trig functions triangle into books. | ||
+ | |||
==Main Body of Lesson== | ==Main Body of Lesson== | ||
===Calculations=== | ===Calculations=== |
Latest revision as of 11:15, 30 October 2010
Contents
Outcomes
Common Learning Outcomes
- Pupils can calculate refractive index.
- Pupils can calculate critical angle.
Single Award Only
- Pupils understand the phenomenon of diffraction.
- Pupils understand the effect of gap width on diffraction effects.
Specification References
- 3.14 recall that light waves are transverse waves which can be reflected, refracted and diffracted
- 3.18 recall and use the relationship between refractive index, angle of incidence and angle of refraction
- 3.22 recall and use the relationship between critical angle and refractive index
Starter
- Elucidate existing knowledge of trigonometric functions.
- Have pupils copy trig functions triangle into books.
Main Body of Lesson
Calculations
- The emphasis of these calculations is on the sin and arcsin functions.