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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER
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Assertion (A): The lowest attainable temperature is absolute zero, i.e., .
Reason (R): Size of each degree on Kelvin scale is same as that on Celsius scale.
Reason (R): Size of each degree on Kelvin scale is same as that on Celsius scale.
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Correct option: B
If both (A) and (R) are true but (R) is not the correct explanation of (A).
Option B is correct because both the assertion and the reason are true, but the reason does not explain the assertion. Absolute zero is indeed -273.15°C, and the Kelvin and Celsius scales have the same degree size, but the latter doesn't explain the former.
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