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poojarao
- 15
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the speed of sound in air is 330ms^-1 , speed of light is 3 x10^8 ms^-1... what's the frequency of radio waves of wavelength 100mm ?
Good. That's all you need to solve for the frequency.poojarao said:wave speed = frequency * wavelength
Both light and radio waves are examples of electromagnetic waves, which have the same speed in a vacuum.poojarao said:ya but which speed do i use?
The relationship between frequency and wavelength is that they are inversely proportional to each other. This means that as frequency increases, wavelength decreases and vice versa. This relationship is described by the equation: wavelength = speed of light / frequency.
The properties of waves, such as amplitude, velocity, and energy, are directly affected by the frequency and wavelength of the wave. Waves with higher frequencies have shorter wavelengths and carry more energy, while waves with lower frequencies have longer wavelengths and carry less energy.
Frequency and wavelength can be measured using different units depending on the type of wave. For electromagnetic waves, frequency is measured in Hertz (Hz) and wavelength is measured in meters (m). For sound waves, frequency is measured in Hertz (Hz) and wavelength is measured in meters (m) or other units such as centimeters (cm) or millimeters (mm).
The relationship between frequency and energy is directly proportional. This means that as frequency increases, energy also increases. This is evident in the electromagnetic spectrum, where waves with higher frequencies, such as gamma rays and X-rays, have more energy than waves with lower frequencies, such as radio waves and microwaves.
The frequency and wavelength of a wave can affect its behavior in various ways. For example, waves with shorter wavelengths and higher frequencies are more easily absorbed by materials, while waves with longer wavelengths and lower frequencies can pass through materials more easily. In addition, the frequency and wavelength of a wave can determine its ability to diffract, reflect, and interfere with other waves.