draw a tangent at any point 'M' on the circle of radius 2.9cm and centre 'O'
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Step-by-step explanation:
German: [ˈalbɛʁt ˈʔaɪnʃtaɪn] (About this soundlisten); 14 March 1879 – 18 April 1955) was a German-born theoretical physicist[5] who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).[3][6] His work is also known for its influence on the philosophy of science.[7][8] He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed "the world's most famous equation".[9] He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect",[10] a pivotal step in the development of quantum theory.
Albert Einstein
Einstein 1921 by F Schmutzer - restoration.jpg
Einstein in 1921
Born
14 March 1879
Ulm, Kingdom of Württemberg, German Empire
Died
18 April 1955 (aged 76)
Princeton, New Jersey, United States
Citizenship
Kingdom of Württemberg, part of the German Empire (1879–1896)[note 1]
Stateless (1896–1901)
Switzerland (1901–1955)
Austria, part of the Austro-Hungarian Empire (1911–1912)
Kingdom of Prussia, part of the German Empire (1914–1918)[note 1]
Free State of Prussia (Germany, 1918–1933)
United States (1940–1955)
Education
Federal Polytechnic School in Zurich (Federal teaching diploma, 1900)
University of Zurich (PhD, 1905)
Known for
General relativity
Special relativity
Photoelectric effect
E=mc2 (Mass–energy equivalence)
E=hf (Planck–Einstein relation)
Theory of Brownian motion
Einstein field equations
Bose–Einstein statistics
Bose–Einstein condensate
Gravitational wave
Cosmological constant
Unified field theory
EPR paradox
Ensemble interpretation
List of other concepts
Spouse(s)
Mileva Marić
(m. 1903; div. 1919)
Elsa Löwenthal
(m. 1919; died[1][2] 1936)
Children
"Lieserl" Einstein
Hans Albert Einstein
Eduard "Tete" Einstein
Awards
Barnard Medal (1920)
Nobel Prize in Physics (1921)
Matteucci Medal (1921)
ForMemRS (1921)[3]
Copley Medal (1925)[3]
Gold Medal of the Royal Astronomical Society (1926)
Max Planck Medal (1929)
Member of the National Academy of Sciences (1942)
Time Person of the Century (1999)