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CBSE Notes 2011-2012 » XI-Physics

Thermal Properties of Matter

Why do birds swell their feathers in winter ?

Short answer question

Why do birds swell their feathers in winter ?

What is Pyrometer ?

Short answer question

What is Pyrometer ?

Name the three modes of transmission of heat.

Short answer question

Name the three modes of transmission of heat.

Write one application of Kirchhoffs law.

Short answer question

Write one application of Kirchhoffs law.

Why do two layers of a cloth of equal thickness provide warmer covering than a single layer of cloth...

Short answer question

Why do two layers of a cloth of equal thickness provide warmer covering than a single layer of cloth of double the thickness ?

Why is it cooler at the top of mountains ?

Short answer question

Why is it cooler at the top of mountains ?

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