图4 点光源发出的光束，从中心向外排序，依次是伽马射线、X射线和紫外线

Figure 4 The beams emitted by the point light source are sorted from the center outwards, followed by gamma rays, X-rays, and ultraviolet rays; between ultraviolet rays and infrared rays are visible light, and then gradually sorted into electromagnetic spectrums of long-wave frequencies other than infrared rays. Figure 4 also calibrates the data corresponding to the frequency and wavelength of the electromagnetic spectrum.

The beamee from the point light source in Figure 4 is sequenced outwardfrom the center, in turn gamma rays, X-rays, and ultraviolet rays, and between ultraviolet and infrared light is visible, and then gradually sorted into the electromagnetic spectrum of other long-wave frequencies other than infrared. Figure IV also delineates the data of the electromagnetic spectrum frequency and wavelength corresponding to each other.

Fig. 4 light beams emitted by point light source are arranged from the center to the outside, in order of gamma rays, X-rays and ultraviolet rays; between ultraviolet rays and infrared rays is visible light, and then gradually to the electromagnetic spectrum of other long wave frequencies other than infrared rays. In Figure 4, the corresponding data of electromagnetic spectrum frequency and wavelength are also calibrated.<br>