Physics for Secondary Schools
Physics for Secondary Schools
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In our eReader you can find the full English version of the book. Read Physics for Secondary Schools Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Physics for Secondary Schools
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In theory this is accomplished when the translucent spot cannot be distinguished from the rest of the card. In practise this is never quite attained, but the adjustment is made by observing when both sides of the card viewed in the two mirrors look exactly alike.
The second law may be illustrated with such an instrument by placing four candles on one side of it at a distance of 100 cm. , and a 224 LIGHT single candle on the other side at a -distance of 50 cm. The illumina- tion on the two sides... of the photometer will be found equal. That is the intensity of 4 candles _ 100 2 _ 4 the intensity of 1 candle 50 2 1 264. The unit of intensity of source of light. No unit of intensity or standard light thoroughly satisfactory has yet been found, but the one in general us. E is the candle power, or the light of a sperm candle which weighs one sixth of a pound (for that reason called " sixes"), and which burns at the rate of 120 grains an hour. When the candle power of a light is to be measured, the light is placed on one side of the photometer and the standard candle, or usually two of them, on the other.
What to read after Physics for Secondary Schools?
You can find similar books in the "Read Also" column, or choose other free books by Adams, Charles Francis, 1835-1915 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In theory this is accomplished when the translucent spot cannot be distinguished from the rest of the card. In practise this is never quite attained, but the adjustment is made by observing when both sides of the card viewed in the two mirrors look exactly alike.
The second law may be illustrated with such an instrument by placing four candles on one side of it at a distance of 100 cm. , and a 224 LIGHT single candle on the other side at a -distance of 50 cm. The illumina- tion on the two sides... of the photometer will be found equal. That is the intensity of 4 candles _ 100 2 _ 4 the intensity of 1 candle 50 2 1 264. The unit of intensity of source of light. No unit of intensity or standard light thoroughly satisfactory has yet been found, but the one in general us. E is the candle power, or the light of a sperm candle which weighs one sixth of a pound (for that reason called " sixes"), and which burns at the rate of 120 grains an hour. When the candle power of a light is to be measured, the light is placed on one side of the photometer and the standard candle, or usually two of them, on the other.
What to read after Physics for Secondary Schools?
You can find similar books in the "Read Also" column, or choose other free books by Adams, Charles Francis, 1835-1915 to read onlineMoreLess
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