Question

i) Heat is transferred from where to where?

answer:

ii) which principle do we learn about from this Process?

answer:


iii) How will you state the principal briefly?

answer:


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

answer:
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Answer 1

Answer:

i) Heat is transferred from one end to the other end.

Answer 2

Answer:

At the centre of Earth, the force due to upper half of the Earth will cancel the force due to lower half. Therefore, when F=0, then g has to be 0. Thus, the value of g is zero at the centre of Earth.