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5 Cards in this Set
- Front
- Back
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Wavefront |
1.Two successive wavefronts are one wavelength apart 2. The ray is perpendicular to the wavefront. |
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Laws of reflection |
The angle of reflection is equal to the angle of incidence |
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Echo |
Echo is a common wave phenomenon due to reflection. It can be used to measure distance and the technique is called the pulse-echo technique. |
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Relationship between the deepth of the water in refraction. |
1. Deeper the water--->wave speed faster. 2. Shallower the water--->wase speed slower. 3. Shallow region to deep region region--->bends away from the normal. When frequency unchanged, velocity increase---> wavelength increase 4. Deep region to shallow region region--->bends towards the normal. When frequency unchanged, velocity decrease---> wavelength decrease. |
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Factors affecting diffraction |
Waves are diffracted more if 1. The wavelength is longer 2. The gap is narrower |
