Write a note on approximation.

1.	Write a note on approximation.
Answer» 1. Approximation is the process of finding a number, which is acceptably close to the exact value of the measurement of a physical quantity. 2. It is an estimation of a number obtained by rounding off a number to its nearest place value. 3. When the data are inadequate, physicists are in need of an approximation to find the solution for problems. 4. Approximations are usually based on certain assumptions having a scientific background and they can be modified whenever accuracy is needed.

Answer»

1. Approximation is the process of finding a number, which is acceptably close to the exact value of the measurement of a physical quantity.

2. It is an estimation of a number obtained by rounding off a number to its nearest place value.

3. When the data are inadequate, physicists are in need of an approximation to find the solution for problems.

4. Approximations are usually based on certain assumptions having a scientific background and they can be modified whenever accuracy is needed.

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