What is estimation of error ? Write method for estimation.
Maximum error during experiment is estimated and it is represented with result of experiment. This is called estimation of error.
Error is estimated in three ways :
$(1)$ Absolute error $(2)$ Relative error and Fractional error $(3)$ Percentage error.
The initial and final temperatures of water as recorded by an observer are $(40.6 \pm 0.2)^{\circ} C$ and $(78.9 \pm 0.3)^{\circ} C .$ Calculate the rise in temperature with proper error limits.
Out of absolute error, relative error and fractional error which has unit and which has no unit ?
The least count of a stop watch is $\frac{1}{5}$ second. The time of $20$ oscillations of a pendulum is measured to be $25$ seconds. The maximum percentage error ig the measurement of time will be ..... $\%$
The relative error in the measurement of the side of a cube is $0.027$. The relative error in the measurement of its volume is ..........
In an experiment, mass of an object is measured by applying a known force on it, and then measuring its acceleration. If in the experiment, the measured values of applied force and the measured acceleration are $F=10.0 \pm 0.2 \,N$ and $a=1.00 \pm 0.01 \,m / s ^2$, respectively. Then, the mass of the object is ............... $kg$