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Explain about the Heat Extraction?
a) A body of mass M has a temperature-independent precise heat C. If the body is heated reversibly from a temperature Ti to a temperature Tf what is the change in its entropy?
b) Two such bodies are primarily at temperatures of 100 K and 400 K. A reversible engine is used to take out heat with the hotter body as a source and the cooler body as a sink. What is the maximum quantity of heat that can be extracted in units of MC?
c) The specific heat of water is C= 402j/g k and its density is 1g/cm3 Calculate the maximum useful work that can be extracted, using as a source 103 m3 of water at 100°C and a lake of temperature 10°C as a sink.
Two forces-55-N clockwise and 35-N counters clockwise-are applied to a merry- go-round with a diameter of 4.5 m. What is the net torque?
What are the properties of ultrasonic waves? Properties of Ultrasonic Waves are as follows: a. Ultrasonic waves are acquiring frequencies higher than20 KHz and therefore th
Differentiate between displacement current and conduction current.
What is the stimulated emission? Define this term briefly. Stimulated emission: a. While photon interacts along with atom that is in the excited state E 2 , in that case de-
(i) A matter pulse is not electromagnetic in behavior. (ii) Practical observation of matter waves is possible only when the de-Broglie wavelength is of the order of the size of
Making a simple refracting telescope To make a simple telescope, two cardboard tubes will be needed, one fitting inside the other. It is not possible to make a satisfactory t
Mica is a (A) Dielectric material. (B) Insulating material. (C) Magnetic material. (D) Both insulating and dielectric material. Ans: Mica is a both insulating and
what is radiation
A ball with an initial momentum of 6.00 kg.m/s bounces off a wall and travels in the opposite direction with a momentum of 4.00 kg.m/s. What is the magnitude of the impulse ac
In order to determine performance of program normal form of analysis of program is to just calculate total amount of CPU time needed to execute different part of program it implies
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