मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

There Were Two Fixed Points in the Original Celsius Scale as Mentioned Above Which Were Assigned the Number 0 °C and 100 °C Respectively. on the Absolute Scale, One of the Fixed Points is the Triple-point of Water, Which on the Kelvin Absolute Scale is Assigned the Number 273.16 K. What is the Other Fixed Point on this (Kelvin) Scale?

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प्रश्न

Answer the following:

There were two fixed points in the original Celsius scale as mentioned above which were assigned the number 0 °C and 100 °C respectively. On the absolute scale, one of the fixed points is the triple-point of water, which on the Kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (Kelvin) scale?

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उत्तर १

The absolute zero or 0 K is the other fixed point on the Kelvin absolute scale.

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उत्तर २

On Kelvin’s absolute scale, there is only one fixed point, namely, the triple-point of water and there is no other fixed point.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Thermal Properties of Matter - Exercises [पृष्ठ २९४]

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एनसीईआरटी Physics Part 1 and 2 [English] Class 11
पाठ 10 Thermal Properties of Matter
Exercises | Q 4.2 | पृष्ठ २९४

संबंधित प्रश्‍न

A metal sphere cools at the rate of 4°C / min. when its temperature is 50°C. Find its rate of cooling at 45°C if the temperature of surroundings is 25°C.


A body cools from 80° C to 70° C in 5 minutes and to 62° C in the next 5 minutes. Calculate the temperature of the surroundings.


It is said that mercury is used in defining the temperature scale because it expands uniformly with  temperature. If the temperature scale is not yet defined, is it logical to say that a substance expands uniformly with temperature?


The length of a brass rod is found to be less on a hot summer day than on a cold winter day as measured by the same aluminium scale. Can we conclude that brass shrinks on heating?


Which of the following pairs may give equal numerical values of the temperature of a body?


The atmospheric temperature in the cities on sea-coast change very little. Explain


Should a thermometer bulb have large heat capacity or small heat capacity?


Two bodies at different temperatures are mixed in a calorimeter. Which of the following quantities remains conserved?


The temperature of an object is observed to rise in a period. In this period

(a) heat is certainly supplied to it

(b) heat is certainly not supplied to it

(c) heat may have been supplied to it

(d) work may have been done on it


A pendulum clock shows correct time at 20°C at a place where g = 9.800 m s–2. The pendulum consists of a light steel rod connected to a heavy ball. It is taken to a different place where g = 9.788 m s–1. At what temperature will the clock show correct time? Coefficient of linear expansion of steel = 12 × 10–6 °C–1.


‘An object contains more heat’- is it a right statement? If not why?


One day in 1922, the air temperature was measured at 59°C in the shade in Libya ______.


Temperature in the form of energy.


The normal temperature of our body is 37°C.


Analogy

Evaporation:: 100°C: Freezing:: ______.


An earthen pitcher loses 1 gm of water per minute due to evaporation. If the water equivalent of the pitcher is 0.5 kg and the pitcher contains 9.5 kg of water, calculate the time required for the water in a pitcher to cool to 28°C from the original temperature of 30°C. Neglect radiation effects. The latent heat of vaporization in this range of temperature is 580 Cal/gm and the specific heat of water is 1 Cal/gm°C.


What is the SI unit of heat?


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The concept of thermal equilibrium, where heat flows between bodies until they reach the same temperature, is the basis of which law of thermodynamics?


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