Define Joule or SI unit of energy
Joule: J (after J.P. Joule, 1818-1889): The derived SI unit of energy stated as the quantity of work done by moving an object via a distance of 1 m by exerting a force of 1 N; it therefore has units of N m.
Name the women scientist who played the essential role in the development of Missile technology of India and is nick named as the ‘Missile Woman’?
what should be the choice of standard unit.
Rayleigh-Jeans law: For a blackbody at the thermodynamic temperature T, the radiance R over a range of frequencies between the nu and nu + dnu is specified by: R = 2 pi nu2 k T/c2.<
Tardon: A particle that has a positive real mass and travels at a speed very less than c in all inertial frames.
What is Anthropic principle? Explain Weak anthropic principle and Strong anthropic principle? Q : Define Mach number Mach number (E. Mach number (E. Mach): It is the ratio of the speed of an object in a specified medium to the speed of sound in that medium.
Mach number (E. Mach): It is the ratio of the speed of an object in a specified medium to the speed of sound in that medium.
What do you mean by the term positron? Explain in short.
Faint, young sun paradox: The theories of stellar evolution point out that as stars mature on the main series, they grow gradually hotter and brighter; computations propose that at as regards the time of the formation of Earth, the Su
State the law of Lamberts Cosine? Describe briefly?
State is it possible that the nucleus consists of negative mass defect?
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