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InterviewSolution
| 1. |
What is atomic spectrom????? |
| Answer» \tWe observe that when a ray of white light falls on a prism it experiences refraction twice.\tOnce when it travels from the rarer medium (air) to a denser medium (glass) and again from the denser medium (glass) to a rarer medium (air).\tFinally, we observe a band of colors, called spectrum, formed out of a ray of white light. If we observe this spectrum more closely, the color having a smaller wavelength deviates the most and vice versa.\tThus, a spectrum of colors ranging from red to violet is observed where red having the longest wavelength suffers the least deviation.\tThis kind of spectrum is called a continuous spectrum as violet merges into blue, blue into green and so on.However, the emission spectrum of atoms in the gas phase, do not exhibit a continuous spread of wavelength from one color to others. Rather, the emitted light consists of a specific wavelength having dark spaces existing between them. Such kind of spectra is known as atomic spectra or line spectra. | |