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Chapters 29 Interference and Diffraction. Topics Huygens Principal Diffraction Interference –two slit –thin film Polarization Holography.

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Presentation on theme: "Chapters 29 Interference and Diffraction. Topics Huygens Principal Diffraction Interference –two slit –thin film Polarization Holography."— Presentation transcript:

1 Chapters 29 Interference and Diffraction

2 Topics Huygens Principal Diffraction Interference –two slit –thin film Polarization Holography

3 Huygens Principle

4 Diffraction

5 Diffraction

6 Interference

7 Two Slit Interference

8 Double Slit Interference

9 Thin Film Interference

10 Polarization

11 Clicker Questions 1)Consider plane waves incident upon a barrier with a small opening. After passing through the opening, the waves A) become polarized. B) continue as plane waves. C) fan out. D) converge. E) all of these 2) Waves diffract the most when their wavelength is A) long. B) short. C) Both diffract the same. 3) Colors seen when gasoline forms a thin film on water are a demonstration of A) interference. B) refraction. C) polarization. D) reflection. E) dispersion.

12 Clicker Questions 4) The vibrational direction of the electron and the plane of polarization of the light it A) are the same. B) are at right angles to each other. C) are independent of each other. D) may or may not be at right angles to each other. 5) An ideal Polaroid will transmit 50% of unpolarized light incident on it. How much light is transmitted by two ideal Polaroids that are oriented with their axes parallel to each other? A) between 50% and 100% B) 100% C) between 0% and 50% D) 50% E) 0%


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