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Tamil Nadu Board of Secondary EducationHSC Science Class 11

Write a short note on the following. Rounding - off - Physics

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Question

Write a short note on the following.

Rounding - off

Short Note

Solution

Rounding off:

While doing calculations, the result got should not has too many figures. If no case the result have more significant figures than the figures involved in the data used for calculating. The result of the calculation with numbers containing more than one uncertain digits should be rounded off.

Example :

18.35 when rounded off to 3 digits 18.4
19.45 when rounded off to 3 digits 19.4
101.55 × 106 when rounded off to four digits 101.6 × 106.

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Chapter 1: Nature of Physical World and Measurement - Evaluation [Page 39]

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Samacheer Kalvi Physics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 1 Nature of Physical World and Measurement
Evaluation | Q III. 4. b) | Page 39

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