Αποτελέσματα Αναζήτησης
Define amplitude, frequency, period, wavelength, and velocity of a wave; Relate wave frequency, period, wavelength, and velocity; Solve problems involving wave properties
Frequency and Wavelength. As the radiation propagates at a given frequency, it has an associated wavelength— that is, the distance between successive crests or successive troughs. Wavelengths are generally given in meters (or some decimal fraction of a meter) or Angstroms (Å, 10 -10 meter).
There are water waves, waves on strings, sound waves, (a) x^. earthquake waves, radio waves, light waves, radar waves, X-rays, etc. In the present unit we shall discuss the most basic properties common to all kinds of waves. We shall then use the next several units to explore.
Properties of waves. A wave (Figure 2) is a periodic perturbation from an undisturbed or rest state that is transmitted in space. The maximum deviation from this undisturbed state is called the amplitude of the wave, and is a measure of the intensity of the perturbation; the top of the wave is called a crest and the lowest state, a trough.
Electromagnetic Wave: Electromagnetic waves are a self-propagating transverse wave of oscillating electric and magnetic fields. The direction of the electric field is indicated in blue, the magnetic field in red, and the wave propagates in the positive x-direction.
PROPERTIES OF WAVES, INCLUDING LIGHT AND SOUND WORKED EXAMPLES 1 A loudspeaker makes sound waves with a frequency of 300 Hz. The waves have a wavelength of 1.13 m. Calculate the speed of the sound waves. x Waves hit a barrier at an angle of incidence i. The waves bounce off with the angle of incidence i equal to the angle of reflection r. The
Characteristics of waves Waves are described by several qualitative terms and quantitative variables. The disturbance in the medium travels with a characteristic speedv. For most of the cases we will discuss the speed is a characteristic of the medium and is independent of other properties of the wave.
