Term
| What is superimposing and the requirements needed for it to occur. |
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Definition
- When two waves meet at a point and the resultant displacement is equal to the vector sum of each individual displacement.
- Superimposing requires the two waves to be of similiar waves and if transverse, they must have the same plane of polarisation.
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Term
| Define a node and anti node |
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Definition
- A node is a point of which displacement is always zero.
- An anti node is a point of which max displacement occurs.
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Term
| Define interference and state the two types of interference that occurs. |
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Definition
- Interference is the affect that occurs when two or more waves meet at a point, overlap and create a new wave pattern.
- Destructive interference occurs when two or more waves overlap and cancel each other out. This requires them to have similiar frequency and amplitude.
- constructive interference occurs when two or more waves overlap each other and have an added displacement.
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Term
| What is diffraction and what is the affect and the two different outcomes that can be given off. |
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Definition
- Diffraction is the spreading of waves that occurs when a wave passes through a slit or gap, preventing it from travelling in a straight line.
- Diffraction occurring with a gap of similiar size to the wavelength will have little affect and only bend a little.
- Diffraction occurring with a different size gap or smaller, will have a bigger affect on the pattern of the wave.
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Term
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Definition
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Term
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Definition
| The constant out of phasness of two similiar waves which does not vary with time. |
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