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8 Cards in this Set
- Front
- Back
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Unit of measurement for velocity |
metres per second (ms-1) |
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Unit of measurement for Frequency |
Hertz (Hz) |
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Wavelength unit |
Depending on type of wave can be measured in metres, centimetres, millimetres, micrometers, or nano metres (nm) |
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Velocity of light in a vaccum |
3x10(to the power of)8 ms-1 |
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Differentiate between transverse and longitudinal waves |
Transverse - Oscillates perpendicular to direction of travel Longitudinal - Oscillates along any direction of travel |
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Which type of waveform is visible light? |
Transverse |
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State the wavelength limits of the visible spectrum |
Red approx. 760nm Violet Approx. 390nm |
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Which other electromagnetic radiations border the visible spectrum and why is this relevant to a dispensing optician? |
Infrared and Ultraviolet Dispensing tints and filters in spectacle lenses. |
