Optical Theories Based On Lectures Delivered Before the Calcutta University
Optical Theories Based On Lectures Delivered Before the Calcutta University
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In our eReader you can find the full English version of the book. Read Optical Theories Based On Lectures Delivered Before the Calcutta University 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 Optical Theories Based On Lectures Delivered Before the Calcutta University
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This requires a + a' = 0, c-\-v ^^c — v Digitized by VjOOQ iC IV] ELECTRON THEORY 137 The energy of the incident wave per unit area corresponding to a length X ^U (say); ti ^\' ^c—v tr \ C -h V ' If p is the pressure of radiation, where U is the energy over a length c + v, which is the displace- ment in unit time.
c—v .
If 81 = density of energy due to incident wave, c-¥v Similarly S^ = J!L.= ^^/^ + ^ • .*. S = total energy-density == S^ -f- Sg '\c+v^(c-vy) ^ (c - vy 4- ( c -h v)2 __ 2ti c^+i^ ...~' (c;4-t;)(c-t;)2 ""c-i;V-t;2 when V is small compared with c. [Larmor, Encyc. Brit.
' Radiation.'] 246. The system of momenta of Art. 243 is found to be " proportional to amounts of energy transferred in unit time across unit planes at right angles to the axes of x, y, z on Poynting's theory of the transfer of energy in the electro- magnetic field/' Hence the direction of momentum* coincides with the direction of flow of energy on this theory.
* Note that we get the same system of momenta on the electron theory.
What to read after Optical Theories Based On Lectures Delivered Before the Calcutta University?
You can find similar books in the "Read Also" column, or choose other free books by Devendra Nath Mallik to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
This requires a + a' = 0, c-\-v ^^c — v Digitized by VjOOQ iC IV] ELECTRON THEORY 137 The energy of the incident wave per unit area corresponding to a length X ^U (say); ti ^\' ^c—v tr \ C -h V ' If p is the pressure of radiation, where U is the energy over a length c + v, which is the displace- ment in unit time.
c—v .
If 81 = density of energy due to incident wave, c-¥v Similarly S^ = J!L.= ^^/^ + ^ • .*. S = total energy-density == S^ -f- Sg '\c+v^(c-vy) ^ (c - vy 4- ( c -h v)2 __ 2ti c^+i^ ...~' (c;4-t;)(c-t;)2 ""c-i;V-t;2 when V is small compared with c. [Larmor, Encyc. Brit.
' Radiation.'] 246. The system of momenta of Art. 243 is found to be " proportional to amounts of energy transferred in unit time across unit planes at right angles to the axes of x, y, z on Poynting's theory of the transfer of energy in the electro- magnetic field/' Hence the direction of momentum* coincides with the direction of flow of energy on this theory.
* Note that we get the same system of momenta on the electron theory.
What to read after Optical Theories Based On Lectures Delivered Before the Calcutta University?
You can find similar books in the "Read Also" column, or choose other free books by Devendra Nath Mallik to read onlineMoreLess
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