- Wavelength is the distance over which the wave shape repeats.
- Wavelength is determined by considering the distance between consecutive corresponding points of same phase such as crests, troughs or zero crossings.
- For a sinusoidal wave wavelength is.
- wavelength = v / f. Where v is velocity and f is frequency.
- Colors of the visible spectrum depends on wavelength.
- During refraction the wavelength changes. And hence angle of propagation change.
- Refraction means traveling the light from one medium to another medium.
- Pattern of light waves on a screen.
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| Double slit |
- Brown wave is the wave with more wavelength when double slit is used.
- Green wave has less wavelength then brown because formed by using double slit.
- Waves with three different wavelengths are shown below in the image.
- Here we are having two waves with one large wavelength and another less wavelength.
Uses:
- Colors of the light can be changed by changing wavelength.
- By increasing wavelength the energy of the wave increases so that the wave may propagate more distance.
Notes:
