Questions by varun

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Mars has approximately half of the earth’s diameter. When it is closest to the earth it is at about 1/2 A.U. from the earth. Calculate what size it will appear when seen through the same telescope. (Comment : This is to illustrate why a telescope can magnify planets but

asked Mar 19, 2022 in 11th Physics

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Einstein’s mass - energy relation emerging out of his famous theory of relativity relates mass (m ) to energy (E ) as E = mc 2, where c is speed of light in vacuum. At the nuclear level, the magnitudes of energy are very small. The energy at nuclear level is usually measured in MeV, where 1 MeV= 1.6×10–13 J; the masses are measured in unified atomic mass unit (u) where 1u = 1.67 × 10–27 kg.

asked Mar 19, 2022 in 11th Physics

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Einstein’s mass - energy relation emerging out of his famous theory of relativity relates mass (m ) to energy (E ) as E = mc 2, where c is speed of light in vacuum. At the nuclear level, the magnitudes of energy are very small. The energy at nuclear level is usually measured in MeV, where 1 MeV= 1.6×10–13 J; the masses are measured in unified atomic mass unit (u) where 1u = 1.67 × 10–27 kg.

asked Mar 19, 2022 in 11th Physics

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Physics is the branch of science which deals with the study

asked Mar 19, 2022 in 11th Physics

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In Physics, quantitative measurement is central to the growth of science

asked Mar 19, 2022 in 11th Physics

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With which phenomena, classical Physics deals

asked Mar 19, 2022 in 11th Physics

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Microscopic domain

asked Mar 19, 2022 in 11th Physics

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Observable universe has range of mass

asked Mar 19, 2022 in 11th Physics

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Maxwell’s set of equation encapsulated basic laws such

asked Mar 19, 2022 in 11th Physics

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The phenomena that optics deals with

asked Mar 19, 2022 in 11th Physics

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Conservation laws are such

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Radio and television are based

asked Mar 19, 2022 in 11th Physics

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The person who had been awarded the title of the Father of Physics of 20th century

asked Mar 19, 2022 in 11th Physics

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In Physics, the range of time scales used is

asked Mar 19, 2022 in 11th Physics

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According to Einstein’s theory of relativity, energy-mass relation is

asked Mar 19, 2022 in 11th Physics

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......... ... was discovered by

asked Mar 19, 2022 in 11th Physics

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Which of the following statement is not

asked Mar 19, 2022 in 11th Physics

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Study the following statem ents regarding conservation law and choose the incorrect

asked Mar 19, 2022 in 11th Physics

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C hoose the correct statem ent from the following

asked Mar 19, 2022 in 11th Physics

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Match the Column I (domains) with Column II (relation) and select the correct option from the codes given below. Column I Column II A. Mechanics P. electric and magnetic fields B. Electrodynamics q. macroscopic equilibrium C. Thermodynamics r. Newton’s laws of motion

asked Mar 19, 2022 in 11th Physics

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