KCET 2020 | Heat and Thermodynamics Question 15 | Physics

A sphere, a cube and a thin circular plate all of same material and same mass initially heated to same high temperature are allowed to cool down under similar conditions. Then, the

plate will cool the fastest and cube the slowest

sphere will cool the fastest and cube the slowest

plate will cool the fastest and sphere the slowest

cube will cool the fastest and plate the slowest

KCET 2020

MCQ (Single Correct Answer)

-0

In an adiabatic expansion of an ideal gas the product of pressure and volume

decreases

increases

remains constant

at first increases and then decreases

KCET 2020

MCQ (Single Correct Answer)

-0

A certain amount of heat energy is supplied to a monoatomic ideal gas which expands at constant pressure. What fraction of the heat energy is converted into work?

$$\frac{2}{3}$$

$$\frac{2}{5}$$

$$\frac{5}{7}$$

KCET 2019

MCQ (Single Correct Answer)

-0

A thermodynamic system undergoes a cyclic process $$A B C$$ as shown in the diagram. The work done by the system per cycle is

KCET 2019 Physics - Heat and Thermodynamics Question 13 English

750 J

$$-$$1250 J

$$-$$750 J

1250 J

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