On the Spectroscopic Examination of Positive Rays Isolated By Transmission Throu
On the Spectroscopic Examination of Positive Rays Isolated By Transmission Throu
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The gas in the capillary tube was then spectro- scopically examined after compression, and showed only a weak air spectrum due to un removed air.
With the main tube containing air, and a voltage across it of 35, 000, after 60 minutes running only the air spectrum of less than its original brightness showed in the capillary. After 90 minutes, however, a weak hydrogen spectrum showed which steadily became more brilliant till a very clear and complete hydrogen spectrum showed after 150 minutes. Th...is spectrum was compared line for line with various standard spectrum tubes which could be compared with each other, and the identification of the hydrogen spectrum was complete. On reducing the voltage across the main tube to 25, 000 by increasing the pressure, 120 minutes were required to show a weak hydrogen spectrum ; and when the voltage was reduced to 8, 000 with the cor- responding rise in pressure, no hydrogen spectrum could be seen even after 300 minutes.
Carbon dioxid, carefully freed from water vapor, was then sub- stituted for air in the apparatus.
What to read after On the Spectroscopic Examination of Positive Rays Isolated By Transmission Throu?
You can find similar books in the "Read Also" column, or choose other free books by Alfred Norton Goldsmith to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The gas in the capillary tube was then spectro- scopically examined after compression, and showed only a weak air spectrum due to un removed air.
With the main tube containing air, and a voltage across it of 35, 000, after 60 minutes running only the air spectrum of less than its original brightness showed in the capillary. After 90 minutes, however, a weak hydrogen spectrum showed which steadily became more brilliant till a very clear and complete hydrogen spectrum showed after 150 minutes. Th...is spectrum was compared line for line with various standard spectrum tubes which could be compared with each other, and the identification of the hydrogen spectrum was complete. On reducing the voltage across the main tube to 25, 000 by increasing the pressure, 120 minutes were required to show a weak hydrogen spectrum ; and when the voltage was reduced to 8, 000 with the cor- responding rise in pressure, no hydrogen spectrum could be seen even after 300 minutes.
Carbon dioxid, carefully freed from water vapor, was then sub- stituted for air in the apparatus.
What to read after On the Spectroscopic Examination of Positive Rays Isolated By Transmission Throu?
You can find similar books in the "Read Also" column, or choose other free books by Alfred Norton Goldsmith to read onlineMoreLess
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