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Lahiri

Asked: February 7, 2021In: Class-11-Physics

The door of a running refrigerator inside a room is left open. The correct statement out of the following ones is

NCERT Solutions for Class 11 Science Properties of matter 8 Important Board Questions Thermodynamics NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Lahiri

Asked: February 7, 2021In: Class-11-Physics

A Carnot engine, having an efficiency of η = 1/10 as heat engine is used as a refrigerator. If the work done on the system is 10J the amount of energy absorbed from the reservoir at lower temperature is

NCERT Solutions for Class 11 Science Properties of matter 8 Important Board Questions Thermodynamics NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Lahiri

Asked: February 7, 2021In: Class-11-Physics

The efficiency of engine is η₁ at T₁ = 200°C and T1 = 0°C and η₂ at T1= 0°C and T₂ –200 K. Find the ratio of 1

NCERT Solutions for Class 11 Science Properties of matter 8 Important Board Questions Thermodynamics NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

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Lahiri

Asked: February 7, 2021In: Class-11-Physics

A body at a temperature of 728°C and having surface area 5 cm2, radiates 300 J of energy each minute. The emissivity is [Given Boltzmann constant : =5.67×10–8 Wm–2 K–4]

NCERT Solutions for Class 11 Science Properties of matter 8 Important Board Questions Thermodynamics NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

Poll

Lahiri

Asked: February 7, 2021In: Class-11-Physics

During an adiabatic process, the increase of a gas is found to be proportional to the cube of its temperature. The ratio of Cp/Cv for the gas is

NCERT Solutions for Class 11 Science Properties of matter 8 Important Board Questions Thermodynamics NCERT Books for Session 2022-2023 CBSE Board and UP Board M.C.Q

Lahiri

The door of a running refrigerator inside a room is left open. The correct statement out of the following ones is

A Carnot engine, having an efficiency of η = 1/10 as heat engine is used as a refrigerator. If the work done on the system is 10J the amount of energy absorbed from the reservoir at lower temperature is

The efficiency of engine is η₁ at T₁ = 200°C and T1 = 0°C and η₂ at T1= 0°C and T₂ –200 K. Find the ratio of 1

A body at a temperature of 728°C and having surface area 5 cm2, radiates 300 J of energy each minute. The emissivity is [Given Boltzmann constant : =5.67×10–8 Wm–2 K–4]

During an adiabatic process, the increase of a gas is found to be proportional to the cube of its temperature. The ratio of Cp/Cv for the gas is

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