Everything Science Grade 12
CHAPTER 10. COLOUR 10.2 c = f× λ f = c λ = 3 × 108 m· s−^1 500 × 10 −^9 m = 6, 00 × 1014 Hz Step 4 : Write final answer The rang ...
10.3 CHAPTER 10. COLOUR light (lowest frequency)is slowed down less than violet light (highest frequency). We can see this when ...
CHAPTER 10. COLOUR 10.3 Subtractive Primary Colours ESCER The subtractive primarycolours are obtained bysubtracting one of the t ...
10.3 CHAPTER 10. COLOUR Proceed according to the table above. Put thecorrect colour of cellophane paper over each torch bulb, e. ...
CHAPTER 10. COLOUR 10.3 Perception of Colour ESCET The light-sensitive liningon the back inside halfof the human eye is called t ...
10.4 CHAPTER 10. COLOUR Colours on a TelevisionScreen ESCEU If you look very closelyat a colour cathode-raytelevision screen or ...
CHAPTER 10. COLOUR 10.4 Colour of opaque objects ESCEW Objects which you cannot see through (i.e. they are not transparent) are ...
10.4 CHAPTER 10. COLOUR SOLUTION We know that magentais a combination of redand blue primary colours of light. Therefore the obj ...
CHAPTER 10. COLOUR 10.4 Pigment primary colours ESCEY The primary pigments and paints are cyan, magenta and yellow. When pigment ...
10.4 CHAPTER 10. COLOUR Example 9: Primary pigments QUESTION I have a ruler which reflects red light and absorbs all other colou ...
CHAPTER 10. COLOUR 10.4 Chapter 10 — Summary See the summary presentation ( Presentation: VPqyc at http://www.everythingscience. ...
10.4 CHAPTER 10. COLOUR (c) green and blue? Match the primary colour of light on the left to its complementary colour on the ri ...
2D and 3D Wavefronts 11 11.1 Introduction ESCEZ You have learnt about the basic principles of reflection and refraction. Inthis ...
11.3 CHAPTER 11. 2D AND3D WAVEFRONTS � � � Figure 11.1: Wavefronts are imaginary lines joining waves that are inphase. In the ex ...
CHAPTER 11. 2D AND3D WAVEFRONTS 11.3 A simple example of the Huygens Principle is to consider the single wavefront in Fig- ure 1 ...
11.4 CHAPTER 11. 2D AND3D WAVEFRONTS use the Huygens Principle to determine the wavefront at a later time. SOLUTION Step 1 : Dra ...
CHAPTER 11. 2D AND3D WAVEFRONTS 11.4 of the medium is greater than the individual displacements. Constructive interference is th ...
11.5 CHAPTER 11. 2D AND3D WAVEFRONTS grey line + grey line =trough + trough = constructive interference black line + grey line= ...
CHAPTER 11. 2D AND3D WAVEFRONTS 11.5 Extension: Diffraction Diffraction refers to various phenomena associated with wave propaga ...
11.5 CHAPTER 11. 2D AND3D WAVEFRONTS Activity: Diffraction Water waves in a rippletank can be used to demonstrate diffraction an ...
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