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23. Heat and Temperature
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Q3 of 64 Page 12

A body A is placed on a railway platform and an identical body B in a moving train. Which of the following energies of B are greater than those of A as seen from the ground?

• Body A only exhibits potential energy


• Body B exhibits kinetic energy due to motion along with the train.


• Kinetic, mechanical (potential + kinetic) and total (all energies) of B are greater than A.

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1

A spinning wheel is brought in contact with an identical wheel spinning at the identical speed. The wheels slow down under the action of friction. Which of the following energies of the first wheel decrease?

2

A spinning wheel A is brought in contact with another wheel B initially at rest. Because of the friction at contact, the second wheel also starts spinning. Which of the following energies of the wheel B increase?

4

In which of the following pairs of temperature scales, the size of a degree is identical?

5

A solid object is placed in the water contained in an adiabatic container for some time. The temperature of waterfalls during the period, and there is no appreciable change in the shape of the object. The temperature of the solid object.

Questions · 64
23. Heat and Temperature
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