![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/4.bp.blogspot.com\/--jKIUY1lPq8\/UySBA1LmR6I\/AAAAAAAAAFo\/bUZE5iTATHc\/s1600\/learn-optics-kids-fig1.gif\")
<\/p>\n<\/p>\n
light<\/u>\u00a0: its electronic magntic transverse wave that travel though space at speed 3*10<\/p>\n
\u0627\u0644\u0636\u0648\u0621<\/u>\u00a0: \u0647\u0648 \u0645\u0648\u062c\u0627\u062a \u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a\u0629 \u062a\u0646\u062a\u0634\u0631 \u0639\u0628\u0631 \u0627\u0644\u0641\u0631\u0627\u063a \u0628\u0627\u0644\u0633\u0631\u0639\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629<\/p>\n
\u0627\u0644\u0635\u0648\u0631\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u0648\u0636\u062d \u0627\u0644\u0636\u0648\u0621 \u0643\u0645\u0648\u062c\u0629 \u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a\u0629 \u0643\u0645\u0627 \u0627\u0646 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u0642\u0645\u062a\u064a\u0646 = \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u0642\u0627\u0639\u064a\u0646 = \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/3.bp.blogspot.com\/-WIh4J3szEeI\/UySBXsi837I\/AAAAAAAAAF8\/V5YGE8VleiU\/s1600\/%25D8%25B4%25D9%2583%25D9%2584+1.jpg\")
<\/p>\n
the-speed of light in space = the-speed of light in air = c\u00a0\u00a0\u00a0\u00a0\u00a0 where c =3*10<\/p>\n
\u0645\u0644\u062d\u0648\u0638\u0629 : \u0633\u0631\u0639\u0629 \u0627\u0646\u062a\u0634\u0627\u0631 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0647\u0648\u0627\u0621 = \u0633\u0631\u0639\u0629 \u0627\u0646\u062a\u0634\u0627\u0631 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0641\u0631\u0627\u063a =c\u00a0\u062d\u064a\u062b \u0627\u0646\u00a0c\u00a0\u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a<\/p>\n
we can talk about light in 3 main words (wavelenght – -speed ) and scientists manage to find a relations amoung 3 words the-ralation is : v=wave length*frequencey<\/p>\n
\u064a\u0645\u0643\u0646 \u062a\u0639\u0631\u064a\u0641 \u0627\u0644\u0636\u0648\u0621 \u0628\u062b\u0644\u0627\u062b\u0629 \u0645\u0635\u0637\u0644\u062d\u0627\u062a \u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0647 ( \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 – \u0627\u0644\u062a\u0631\u062f\u062f – \u0627\u0644\u0633\u0631\u0639\u0629 ) \u0648 \u062a\u0645\u0643\u0646 \u0627\u0644\u0639\u0644\u0645\u0627\u0621 \u0645\u0646 \u0627\u064a\u062c\u0627\u062f \u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u0627\u0644\u062b\u0644\u0627\u062b\u0629 \u0639\u0646\u0627\u0635\u0631 \u0648 \u0647\u0649 : \u0633\u0631\u0639\u0629 \u0627\u0646\u062a\u0634\u0627\u0631 \u0627\u0644\u0636\u0648\u0621 = \u0627\u0644\u062a\u0631\u062f\u062f * \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649<\/p>\n
\u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0636\u0648\u0621 \u0648 \u0627\u0646\u0639\u0643\u0627\u0633 \u0627\u0644\u0636\u0648\u0621\u00a0(reflection and reflction)\u00a0:<\/u><\/p>\n
-consider a ray of light travel through a boundry spreading through two different media<\/p>\n
– \u0646\u0641\u062a\u0631\u0636 \u0623\u0634\u0639\u0629 \u0645\u0646 \u0627\u0644\u0636\u0648\u0621 \u062a\u0633\u0642\u0637 \u0639\u0644\u0649 \u0627\u0644\u0633\u0637\u062d \u0627\u0644\u0641\u0627\u0635\u0644 \u0628\u064a\u0646 \u0648\u0633\u0637\u064a\u0646 (\u062c\u0632\u0621 \u0645\u0646 \u0627\u0644\u0627\u0634\u0639\u0629 \u0647\u064a\u0646\u0639\u0643\u0633 \u0648 \u0627\u0644\u062c\u0632\u0621 \u0627\u0644\u0627\u062e\u0631 \u0647\u064a\u0646\u0643\u0633\u0631)<\/p>\n
– the reflected rays makes the same angle with normal (n)<\/p>\n
– \u0627\u0644\u0627\u0634\u0639\u0629 \u0627\u0644\u0645\u0646\u0639\u0643\u0633\u0629\u00a0 (\u0627\u0644\u0645\u0631\u062a\u062f\u0629 \u0644\u0644\u0648\u0633\u0637 \u0627\u0644\u0633\u0627\u0642\u0637\u0629 \u0645\u0646\u0647) \u062a\u0635\u0646\u0639 \u0632\u0627\u0648\u064a\u0629 \u0645\u0633\u0627\u0648\u064a\u0629 \u0644\u0632\u0627\u0648\u064a\u0629 \u0633\u0642\u0648\u0637\u0647\u0627 \u062d\u064a\u062b \u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0633\u0642\u0648\u0637 = \u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631 =\u00a0(N)<\/p>\n
-the refracted ray makes a different angle (r) with normal (n)<\/p>\n
– \u0627\u0644\u0627\u0634\u0639\u0629 \u0627\u0644\u0645\u0646\u0643\u0633\u0631\u0629 \u0639\u0646\u062f \u0627\u0646\u062a\u0642\u0627\u0644\u0647\u0627 \u0644\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 \u062a\u0635\u0646\u0639 \u0632\u0627\u0648\u064a\u0629 \u0645\u062e\u062a\u0644\u0641\u0629 \u0639\u0646 \u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0633\u0642\u0648\u0637 \u0648 \u062a\u0633\u0645\u0649 (R)<\/p>\n
-index a frefraction (n) = c\\v<\/p>\n
– \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631 \u0644\u0627\u0649 \u0648\u0633\u0637 \u0647\u0648 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0641\u0631\u0627\u063a \u0645\u0642\u0633\u0648\u0645\u0627 \u0639\u0644\u0649 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0644\u0649 \u0628\u0646\u062c\u064a\u0628 \u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631\u0629<\/p>\n
-note<\/u>:\u00a0 (n)fpr air = 1<\/p>\n
\u0645\u0644\u062d\u0648\u0638\u0629 : \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631 \u0644\u0644\u0647\u0648\u0627\u0621 \u064a\u0633\u0627\u0648\u0649 1 (\u062d\u0641\u0638)<\/p>\n
\u0648\u062f\u0649 \u0635\u0648\u0631\u0629 \u0628\u062a\u0648\u0636\u062d \u0639\u0645\u0644\u064a\u0647 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631 \u0648 \u0627\u0644\u0627\u0646\u0639\u0643\u0627\u0633<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/1.bp.blogspot.com\/-Piiqihses0s\/UySC41njalI\/AAAAAAAAAGc\/4ZVnFmfTyIk\/s1600\/images+(2).jpg\")
<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/1.bp.blogspot.com\/-e57D7Gu76XQ\/UySC6O2lSXI\/AAAAAAAAAGk\/otqvutE5P4g\/s1600\/images+(3).jpg\")
<\/p>\n
\u0642\u0648\u0627\u0646\u064a\u0646 \u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u0649 \u062d\u0644 \u0627\u0644\u0645\u0633\u0627\u0626\u0644 :<\/p>\n
1-\u0627\u062b\u0628\u0627\u062a \u0627\u0644\u0642\u0627\u0648\u0646 \u0627\u0644\u0627\u0648\u0644 :<\/u><\/p>\n
\u0628\u0646\u0641\u0631\u0636 \u0627\u0646 \u0634\u0639\u0627\u0639 \u0636\u0648\u0626\u0649 \u0633\u0642\u0637 \u0645\u0646 \u0648\u0633\u0637 \u0627\u0648\u0644 \u0627\u0644\u0649 \u0648\u0633\u0637 \u062b\u0627\u0646\u0649 \u0644\u062a\u062d\u062f\u062b \u0644\u0647 \u0639\u0645\u0644\u064a\u0629 \u0627\u0646\u0643\u0633\u0627\u0631 \u0641\u0627\u0646 :<\/p>\n
– \u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644 = \u062e\u0627\u0631\u062c \u0642\u0633\u0645\u0629 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0641\u0631\u0627\u063a \u0639\u0644\u0649 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0647\u0630\u0627 \u0627\u0644\u0648\u0633\u0637 \u0648 \u0628\u0639\u062f\u064a\u0646 \u0646\u0636\u0631\u0628 \u0637\u0631\u0641\u064a\u0646 \u0641\u0649 \u0648\u0633\u0637\u064a\u0646 \u0644\u0646\u062d\u0635\u0644 \u0639\u0644\u0649 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0649 (C) \u0628\u062a\u0633\u0627\u0648\u0649 …<\/p>\n
– \u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 = \u062e\u0627\u0631\u062c \u0642\u0633\u0645\u0629\u00a0 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0641\u0631\u0627\u063a \u0639\u0644\u0649 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 \u0648 \u0628\u0639\u062f\u0633\u0646 \u0646\u0636\u0631\u0628 \u0648\u0633\u0637\u064a\u0646 \u0641\u0649 \u0637\u0631\u0641\u064a\u0646 \u0644\u0646\u062d\u0635\u0644 \u0639\u0644\u0649 \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0649 (C) \u0628\u062a\u0633\u0627\u0648\u0649 …<\/p>\n
\u0648 \u0628\u0645\u0627 \u0623\u0646 : \u0627\u0644 (C\u00a0) \u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a ……… \u0627\u0630\u0646 : \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u0627\u0648\u0644\u0649 = \u0627\u0644\u0645\u0639\u0627\u062f\u0644\u0629 \u0627\u0644\u062b\u0627\u0646\u064a\u0629 \u0648 \u0645\u0646\u0647\u0627 \u0646\u0633\u062a\u0646\u062a\u062c \u0627\u0644\u0642\u0627\u0646\u0648\u0646<\/p>\n
\u0648 \u062f\u0649 \u0635\u0648\u0631\u0629 \u0623\u062b\u0628\u0627\u062a \u0627\u0644\u0642\u0627\u0646\u0648\u0646 :<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/4.bp.blogspot.com\/-iUvuctKZuKM\/UySBTCU316I\/AAAAAAAAAF0\/9j04O60rH9o\/s1600\/%25D8%25A7%25D8%25AB%25D8%25A8%25D8%25A7%25D8%25AA+%25D9%2582%25D8%25A7%25D9%2586%25D9%2588%25D9%2586+1.jpg\")
<\/p>\n
2- \u0635\u064a\u063a\u0629 \u0623\u062e\u0631\u0649 \u0644\u0646\u0641\u0633 \u0627\u0644\u0642\u0627\u0646\u0648\u0646 :<\/u><\/p>\n
\u0645\u0646 \u0627\u0644\u0642\u0627\u0646\u0648\u0646 \u0627\u0644\u0627\u0648\u0644 \u0646\u0639\u0644\u0645 \u0627\u0646 \u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644 \u0645\u0642\u0633\u0648\u0645\u0627 \u0639\u0644\u0649 \u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 \u064a\u0633\u0627\u0648\u0649 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 \u0645\u0642\u0633\u0648\u0645\u0627 \u0639\u0644\u0649 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644<\/p>\n
– \u062b\u0645 \u0646\u0641\u0643 \u0633\u0631\u0639\u0629 \u0627\u0644\u0636\u0648\u0621 \u0641\u0649 \u0627\u0644\u0628\u0633\u0637 \u0648 \u0627\u0644\u0645\u0642\u0627\u0645 \u062d\u064a\u062b \u0627\u0644\u0633\u0631\u0639\u0629 = \u0627\u0644\u0637\u0648\u0644\u00a0 \u0627\u0644\u0645\u0648\u062c\u0649 *\u0627\u0644\u062a\u0631\u062f\u062f<\/p>\n
\u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 : \u0628\u064a\u062e\u062a\u0644\u0641 \u0645\u0646 \u0648\u0633\u0637 \u0644\u062a\u0627\u0646\u0649 \u0648 \u0628\u0627\u0644\u062a\u0627\u0644\u0649 \u0647\u0646\u0633\u0645\u0649 \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 \u0627\u0644\u0627\u0648\u0644 \u0648 \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 \u0627\u0644\u062b\u0627\u0646\u0649<\/p>\n
\u0627\u0644\u062a\u0631\u062f\u062f : \u0645\u0642\u062f\u0627\u0631 \u062b\u0627\u0628\u062a \u0644\u0646\u0641\u0633 \u0627\u0644\u0645\u0648\u062c\u0629\u00a0 \u0645\u0647\u0645\u0627 \u0627\u062e\u062a\u0644\u0641 \u0648\u0633\u0637 \u0627\u0646\u062a\u0634\u0627\u0631\u0647\u0627 \u0648 \u0628\u0627\u0644\u062a\u0627\u0644\u0649 \u0645\u0641\u064a\u0647\u0648\u0634 \u0627\u0648\u0644 \u0648 \u062a\u0627\u0646\u0649<\/p>\n
\u0628\u0627\u0644\u062a\u0627\u0644\u0649 : \u0647\u0646\u062e\u062a\u0635\u0631 \u0627\u0644\u062a\u0631\u062f\u062f \u0645\u0646 \u0627\u0644\u0628\u0633\u0637 \u0645\u0639 \u0627\u0644\u062a\u0631\u062f\u062f \u0645\u0646 \u0627\u0644\u0645\u0642\u0627\u0645 \u0644\u062a\u0628\u0642\u0649 \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 \u0627\u0644\u062a\u0627\u0646\u0649 \u0645\u0642\u0633\u0648\u0645\u0627 \u0639\u0644\u0649 \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 \u0627\u0644\u0627\u0648\u0644 \u0645\u0633\u0627\u0648\u064a\u0627 \u0644\u0644\u0639\u0644\u0627\u0642\u0629 \u0627\u0644\u0627\u0648\u0644\u0649<\/p>\n
\u0648 \u062f\u0649 \u0635\u0648\u0631\u0629 \u0628\u062a\u0648\u0636\u062d \u0627\u0633\u062a\u0646\u062a\u0627\u062c \u0627\u0644\u0642\u0627\u0646\u0648\u0646 \u0627\u0644\u062b\u0627\u0646\u0649<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/1.bp.blogspot.com\/-_8tcGzYahu8\/UySBzVHauGI\/AAAAAAAAAGE\/mOOfD2gD3KM\/s1600\/%25D8%25A7%25D8%25AB%25D8%25A8%25D8%25A7%25D8%25AA+%25D9%2582%25D8%25A7%25D9%2586%25D9%2588%25D9%2586+2.jpg\")
<\/p>\n
– \u0635\u064a\u063a\u0629 \u0627\u062e\u0631\u0649 \u0645\u0633\u0627\u0648\u064a\u0629 \u0644\u0644\u0642\u0627\u0646\u0648\u0646 \u0627\u0644\u0627\u0648\u0644 : \u062c\u0627 \u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0633\u0642\u0648\u0637 \u0645\u0642\u0633\u0648\u0645\u0627 \u0639\u0644\u0649 \u062c\u0627 \u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631<\/p>\n
3- \u0642\u0627\u0646\u0648\u0646 \u0633\u0646\u0644\u00a0(snell law)\u00a0:<\/u><\/p>\n
\u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644 * \u062c\u064a\u0628 \u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0633\u0642\u0648\u0637 \u0641\u0649 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644 = \u0645\u0639\u0627\u0645\u0644 \u0627\u0646\u0643\u0633\u0627\u0631 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 * \u062c\u064a\u0628 \u0632\u0627\u0648\u064a\u0629 \u0633\u0642\u0648\u0637 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/1.bp.blogspot.com\/-RskNYISvmng\/UySCLP4PXvI\/AAAAAAAAAGM\/mUxIiHKMiQI\/s1600\/%25D8%25B3%25D9%2586%25D9%2584.jpg\")
<\/p>\n
4- \u0642\u0627\u0646\u0648\u0646 \u0627\u0644\u0639\u0645\u0642 \u0627\u0644\u0638\u0627\u0647\u0631\u0649 \u0644\u062c\u0633\u0645 \u0645\u063a\u0645\u0648\u0631 \u0641\u0649 \u0627\u0644\u0645\u0627\u0621 :<\/u><\/p>\n
\u062e\u0627\u0631\u062c \u0642\u0633\u0645\u0629 \u0627\u0644\u0639\u0645\u0642 \u0627\u0644\u062d\u0642\u064a\u0642\u0649 \u0644\u0644\u062c\u0633\u0645 \u0639\u0644\u0649 \u0627\u0644\u0639\u0645\u0642 \u0627\u0644\u0638\u0627\u0647\u0631\u0649 \u0644\u0647 = \u062e\u0627\u0631\u062c \u0642\u0633\u0645\u0629 \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631 \u0644\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649 \u0639\u0644\u0649 \u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u0627\u0646\u0643\u0633\u0627\u0631 \u0644\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644<\/p>\n
\u0638\u0627\u0647\u0631\u0629 \u0627\u0644\u0639\u0645\u0642 \u0627\u0644\u062d\u0642\u064a\u0642\u0649 \u0648 \u0627\u0644\u0639\u0645\u0642 \u0627\u0644\u0638\u0627\u0647\u0631\u0649 \u0644\u062c\u0633\u0645 \u0645\u063a\u0645\u0648\u0631 \u0641\u0649 \u0627\u0644\u0645\u0627\u0621\u00a0: \u0639\u0646\u062f \u0627\u0646\u062a\u0642\u0627\u0644 \u0627\u0644\u0634\u0639\u0627\u0639 \u0627\u0644\u0636\u0648\u0626\u0649 \u0645\u0646 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0627\u0648\u0644 ( \u0627\u0644\u0647\u0648\u0627\u0621) \u0627\u0644\u0649 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u062b\u0627\u0646\u0649(\u0627\u0644\u0645\u0627\u0621) \u0641\u0627\u0646\u0629\u064a\u0646\u0643\u0633\u0631 \u0645\u0628\u062a\u0639\u062f\u0627 \u0639\u0646 \u0645\u0648\u0636\u0639 \u0627\u0633\u062a\u0642\u0627\u0645\u062a\u0629 ( \u0627\u0644\u0645\u0646\u0642\u0637 \u0628\u0627\u0644\u0644\u0648\u0646 \u0627\u0644\u0627\u062d\u0645\u0631) \u0644\u0630\u0644\u0643 \u0646\u0631\u0649 \u0627\u0644\u062c\u0633\u0645 \u0627\u0642\u0631\u0628 \u0645\u0646 \u0645\u0643\u0627\u0646\u0629 \u0627\u0644\u062d\u0642\u064a\u0642\u0649\u00a0\u00a0\u00a0 (\u0645\u062c\u0631\u062f \u062a\u0641\u0633\u064a\u0631 \u0648 \u0644\u0645 \u062a\u0643\u062a\u0628\u0629 \u062f.\u0644\u0645\u064a\u0627\u0621 \u0639\u0644\u0649 \u0627\u0644\u0628\u0648\u0631\u062f)<\/p>\n
![](\"https:\/\/web.archive.org\/web\/20140624184833im_\/http:\/\/2.bp.blogspot.com\/-Vzg5HsGpN-U\/UySCMnu7-_I\/AAAAAAAAAGU\/01pertfLgOs\/s1600\/tota.jpg\")
<\/p>\n
\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0645\u0633\u0623\u0644\u062a\u064a\u0646 \u0627\u0644\u0644\u0649 \u062d\u0644\u064a\u062a\u0647\u0645 \u062f.\u0644\u0645\u064a\u0627\u0621 \u0641\u0649 \u0627\u0644\u0645\u062d\u0627\u0636\u0631\u0629 \u0647\u064a\u0646\u0632\u0644\u0648\u0627 \u0645\u0639 \u062d\u0644 \u0627\u0644\u0634\u064a\u062a \u0639\u0634\u0627\u0646 \u0627\u0644\u0645\u062d\u0627\u0636\u0631\u0627\u062a \u0627\u0644\u0646\u0638\u0631\u0649 \u062a\u0643\u0648\u0646 \u0641\u0649 \u0645\u0642\u0627\u0644\u0629 \u0648 \u0627\u0644\u0645\u0633\u0627\u0626\u0644 \u0641\u0649 \u0645\u0642\u0627\u0644\u0647 \u062a\u0627\u0646\u064a\u0629 \u00a0.. \u0634\u0643\u0631\u0627 \u0644\u0645\u062a\u0627\u0628\u0639\u062a\u0643\u0645<\/p>\n","protected":false},"excerpt":{"rendered":"
light\u00a0: its electronic magntic transverse wave that travel though space at speed 3*10 \u0627\u0644\u0636\u0648\u0621\u00a0: \u0647\u0648 \u0645\u0648\u062c\u0627\u062a \u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a\u0629 \u062a\u0646\u062a\u0634\u0631 \u0639\u0628\u0631 \u0627\u0644\u0641\u0631\u0627\u063a \u0628\u0627\u0644\u0633\u0631\u0639\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0627\u0644\u0635\u0648\u0631\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u062a\u0648\u0636\u062d \u0627\u0644\u0636\u0648\u0621 \u0643\u0645\u0648\u062c\u0629 \u0643\u0647\u0631\u0648\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a\u0629 \u0643\u0645\u0627 \u0627\u0646 \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u0642\u0645\u062a\u064a\u0646 = \u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0628\u064a\u0646 \u0627\u0644\u0642\u0627\u0639\u064a\u0646 = \u0627\u0644\u0637\u0648\u0644 \u0627\u0644\u0645\u0648\u062c\u0649 the-speed of light in space = the-speed of light in air = c\u00a0\u00a0\u00a0\u00a0\u00a0 where c […]<\/p>\n","protected":false},"author":1,"featured_media":62,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-61","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/posts\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohnds.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=61"}],"version-history":[{"count":2,"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/posts\/61\/revisions"}],"predecessor-version":[{"id":67,"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/posts\/61\/revisions\/67"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mohnds.com\/index.php?rest_route=\/wp\/v2\/media\/62"}],"wp:attachment":[{"href":"https:\/\/mohnds.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=61"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohnds.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=61"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohnds.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}