آزمایش طیف سنجی هیدروژن سری بالمر (Analyzing the hydrogen spectrum)
Model 2-8
Modern Experiments
هدف آزمایش:
بررسی طیف هیدروژن و اندازه گیری طول موجهای آن، تعیین ثابت ریدبرگ
وسایل آزمایش:
اسپکترومتر ، توری پراش ، لامپ هیدروژن + نگهدارنده + پایه و میله ، منبع تغذیه ولتاژ بالا DC ،(۰-۵) KV ، سیم رابط HV ، سیم رابط معمولی ۱عدد (۱۰۰cm) ، گیره چند منظوره .
:Descriptions
To investigate the spectra of H۲ and measuring it’s wavelength and determining the Rydberg Constant.In this experiment, the emission spectrum is excited using a balmer lamp filled with water vapor, in which an electric discharge splits the water molecules in to an excited hydrogen atom and a hydroxyl group. The wavelengths of the lines Ha , Hb and Hg are determined using a high-resolution grating. In the first diffraction order of the grating, we can fined the following relationship between the wavelength l and the angle of observation q: l =d. sin q ; d: grating constant. The measured values are compared with the values calculated according to the balmer formula
:Required equipments for the Experiment
Spectral tubes with housing and holder ۳۳۰۰۰۱
High Voltage Power Supply 330002
H.V. Connection Cables (N=2) ۱۱۰۰۲۷
