Physics-
General
Easy
Question
An ideal monoatomic gas is carried around the cycle ABCDA as shown in the figure. The efficiency of the gas cycle is :
- 4/21
- 2/21
- 4/31
- 2/31
The correct answer is: 4/21
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A mass of ideal gas is first expanded isothermally and then compressed adiabatically to its original volume.
What further simplest operation must be performed on the gas to restore it to its original state.
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What further simplest operation must be performed on the gas to restore it to its original state.
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A volume (V)-temperature (T) diagram was obtained when a given mass of gas was heated. During the heating process from state 1 to state 2, the pressure :
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If x has the value calculated in above question. Then temperature of junction b or d is:
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In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (A)
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In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (A)
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A uniform cylinder free to turn around a fixed axis has a string wrapped around it as shown to the right. The string is pulled with a force F equal to the cylinders weight. What is the acceleration of the string?
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