Question

Question no 4: Solve the following questions (any 1) 5

1.If heat is exchanged between a hot and cold object, the temperature

of the cold object goes on increasing due to gain of energy and the temperature of the

hot object goes on decreasing due to loss of energy.

The change in temperature continues till the temperatures of both the

objects attain the same value. In this process, the cold object gains

heat energy and the hot object loses heat energy. If the system of both

the objects is isolated from the environment by keeping it inside a heat

resistant box (meaning that the energy exchange takes place between

the two objects only), then no energy can flow from inside the box or

come into the box.

i. Heat is transferred from where to where?

ii. Which principle do we learn about from this process?

iii. How will you state the principle briefly?

iv. Which property of the substance is measured using this principle?

2. Explain why the value of g is zero at the centre of the earth.​

Answer 1

Answer:

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