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The temperature of a body is measured indirectly by making use of the fact that certain physical property of a substance changes linearly with the temperature
If the value of the thermometric property X differ linearly with temperature T, then selecting the simplest possible relationship
T(x) = aX + b
Where the constants b and a must be measured. This linear scale seems that each interval of temperature corresponds to the similar change in the value of the thermometric property. To measure a temperature on this scale two calibration points are select whose temperatures are described as T1 and T2 arbitrarily. The relative thermometric property X1 and X2 are measured..
the joule is the same as
Specific heat of a gas is numerically equivalent to the amount of heat essential to raise the temperature of unit mass of gas by 1 0 C. In order to raise the temperature of unit ma
Cosmological redshift An effect where light emitted through a distant source seems redshifted due to the expansion of spacetime itself.
What is The sun? The sun:- Sun the brightest object in the universe. It is main body of the solar system. It has a luminous sphere approximately 8,65,000 miles in diameter. It
Velocity of light in moving media, Sagnac formula and its application in optical gyroscopes In 1913, the French physicist Georges Signac published some experimental results and
Two slits in young''s double slit experiment are illuminated by two different sodium lamps emitting light of same wavelength . Do you observe any interference pattern on the screen
A 25cm long conductor moves at a uniform speed of 8m/s by a uniform magnetic field of flux density 1.2T. Verify the current flowing in the conductor when (a) Its ends are o
Radiography and depletion of Ozone layer: What is Radiography? A. The method in which soft X-rays are used in medical diagnosis is called radiography. What are the uses
State the process of diffusion When these two pieces are joined together and suitably treated, they from a pn junction. Moment they form a pn junction, some of the
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
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