According to Newton's third law of motion, if this snowy owl wants to increase its altitude, what must it do?
2 answers:
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Answer:
For this given plane monochromatic electromagnetic wave with wavelength λ=598 nm, the wavenumber is .
Explanation:
For a plane electromagnetic wave we have that the electrical and magnetic field are:
In this case we have the data for the magnetic field. We are told that the magnetic field in a plane electromagnetic wave with wavelength λ=598 nm, propagating in a vacuum in the z direction () is described by
( are the unit vectors in the x,y,z directions respectively)
The wavenumber k is a measure of the spatial frequency of the wave, is defined as the number of radians per unit distance:
where λ is the wavelength
So we get that
The wavenumber is
.