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Q. Illustrates the branches of physics?
Answer:-
The basic branches of physics are classical mechanics electromagnetism including thermodynamics, optics, relativity and quantum mechanics.
Explain how was the length of a standard meter redefined in the year 1983?
Seeing as 1983 the meter has been defined as the distance light travels in a vacuum in exactly 1⁄ 299,792,458th of a second.
How can we calculate the rate of effusion of nitrogen gas from a cylinder. and how much time it will take??
A reversible power cycle receives energy H Q from a reservoir at temperature H T and rejects C Q to a reservoir at temperature C T. The work developed by the power cycle is used to
A certain radioactive substance has a half-life of 40 minutes. How much of an original 100 grams substance will remain after 2 hours? solution) m= m0/2t/T m=100 gms.. t=2 hours
Explain quasi-static isothermal expansion A method is reversible only if it is quasi-static and non dissipative. E.g. A quasi-static isothermal expansion of an ideal gas
Which one of the following pairs is not correctly matched: (1) Rutherford-Proton (2) J.J. Thomsom-Electron (3) J.H. Chadwick-Neutron (4) Bohr-Isotope Ans:(4)Bohr-Is
explain newtons motion law
What will happen when a ball is dropped in a hole passing by the centre of earth through out diametrically? Ans) The ball will implement simple harmonic motion centered at the ce
Gravitational Field inside a Spherical Shell In this problem we prove that the gravitational field inside a thin spherical shell of finitemass is zero. By extension, the field
Explain the Wave Particle Duality Any object in the world can be considered to be a particle or wave and will exhibit properties of both. For example, a photon of light, an ele
what is the difference between diplacement and distance
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