What is the distance between crests called?
The highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height. The horizontal distance between two adjacent crests or troughs is known as the wavelength.
What happens to a wave when frequency increases?
From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer. There are two basic types of waves: mechanical and electromagnetic.
Why does increased tension increase wave speed?
Increasing tension lengthens the wavelength, reduces the amplitude, increases the frequency, and therefore an increase in the speed.
How do you find tension in a wave speed?
The speed of the wave can be found from the linear density and the tension v=√FTμ. From the equation v = √FTμ, if the linear density is increased by a factor of almost 20, the tension would need to be increased by a factor of 20.
What is the difference between wavenumber and wavelength?
The relationship between wavelength, frequency, and velocity of a wave is given by v = f λ where f is the frequency of the wave and λ is the wavelength. Wavenumber is defined as the number of wavelengths in a given distance.
Is wavelength is directly proportional to energy?
The amount of energy is directly proportional to the photon’s electromagnetic frequency and thus, equivalently, is inversely proportional to the wavelength. The higher the photon’s frequency, the higher its energy. Equivalently, the longer the photon’s wavelength, the lower its energy.
Why is Wavenumber used?
A Raman spectrum plotted on a wavelength scale would be very narrow and clustered. Wavenumber is very convenient since it also allows IR spectrum to be compared and is also a measure of energy.
Can a wave number be negative?
Yes, that’s right. If you go on to study waves propagating in two or three dimension of space, then you will find that k can become a vector quantity. Its x, y, or z components can then be negative.