The simplest periodic wave O Other kinds of periodic waves Square wave Triangle wave modulated wave Sawtoothed wave
y x o The simplest periodic wave Other kinds of periodic waves: Square wave Triangle wave modulated wave Sawtoothed wave
4. According to shape of wavefronts (a) The definitions of wave surface'(波面或同相面and wavefront(波前或波阵面? See动画库\波动与光学夹\2-02波的描述1 (b) The definition of a ray(s a line normal to the wavefronts, indicating the direction of motion of the waves Wavefronts are always l direction of Ray
4. According to shape of wavefronts (a) The definitions of ‘wave surface’ (波面或同相面)and ‘wavefront’(波前或波阵面)? See动画库\波动与光学夹\2-02波的描述 1 (b) The definition of ‘a ray’(波线): A line normal to the wavefronts, indicating the direction of motion of the waves. Wavefronts are always ⊥ direction of Ray
x Two different types of wavefronts Plane waves Spherical waves Plane wave: The wavefronts are planes, and the rays are parallel straight lines Spherical wave: The wavefronts are spherical and the rays are radial lines leaving the point source in all directions
Plane wave: The wavefronts are planes, and the rays are parallel straight lines. Spherical wave: The wavefronts are spherical, and the rays are radial lines leaving the point source in all directions. ★ Two different types of wavefronts: Plane waves Spherical waves
Ray(波线) Wave surface(波面) Wavefront(波前) 波前 波面 Spherical wave ray Plane wave
Ray(波线) Wave surface(波面) Wavefront(波前) * Spherical wave Plane wave 波前 波面 ray
5. Waves in different fields in physics sound waves water waves earthquake waves light waves electromagnetic waves gravitational waves matter waves lattice waves
5. Waves in different fields in physics sound waves water waves earthquake waves light waves electromagnetic waves gravitational waves matter waves lattice waves