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Questions and Answers
What did Christian Huygens propose in 1678?
What did Christian Huygens propose in 1678?
- Light produces longitudinal disturbance in the medium
- Light produces particles that travel in the form of a wave
- Light produces interference patterns
- Light produces periodic disturbance in the medium which travels in the form of a wave (correct)
How is interference of light defined?
How is interference of light defined?
- The bending of light waves around obstacles
- The reflection of light waves from a surface
- Redistribution of intensities when coherent light waves superpose (correct)
- The polarization of light waves
What is the result of constructive interference?
What is the result of constructive interference?
- Minimum amplitude and intensity of resultant light wave
- Maximum amplitude and intensity of resultant light wave (correct)
- Complete cancellation of light waves
- No change in the amplitude and intensity of light waves
What is the result of destructive interference?
What is the result of destructive interference?
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What did Christian Huygens assume about the nature of light waves?
What did Christian Huygens assume about the nature of light waves?
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Study Notes
Christian Huygens' Proposals
- In 1678, Christian Huygens proposed that light is a wave, and he was the first to suggest that light waves are propagated in a medium called the ether.
Interference of Light
- Interference of light is defined as the superposition of two or more light waves, resulting in a new wave pattern.
Types of Interference
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Constructive Interference
- The result of constructive interference is a brighter region, where the amplitude of the light wave is increased.
- Occurs when the crests of the light waves align.
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Destructive Interference
- The result of destructive interference is a darker region, where the amplitude of the light wave is decreased.
- Occurs when the troughs of the light waves align.
Huygens' Assumptions
- Christian Huygens assumed that light waves are similar to water waves, requiring a medium (the ether) to propagate.
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