A student performs an experiment and takes 50 observations. The systematic error in the calculation is found to be e. If the student now takes 100 observations, the systematic error would be

A scientist performs an experiment in order to measure a certain physical quantity and takes 100 observations. He repeats the same experiment and takes 400 observations, by doing so

A scientist performs an experiment and takes 100 readings. He repeats the same experiment and now takes 500 readings, By doing this what is the advantage?

if the randon error in the arithmetic mean of 50 observations is alpha , then the random error in the arithmetic mean of 150 observations would be

The random error in the arithmetic mean of 100 observations is x, then random error in the arithmetic mean of 400 observations would be

A student performs exeriment with simple pendulum and measures time for 10 vibrations. If the measures the time for 100 vibrations, the error in measurement of time period will be reduced by a factor of......

A research worker takes 100 observations in an experiment . If he repeats the same experiment by taking 500 observation , how is the probable error affected?

The measurement of an unknown resistance R is to be carried out using Wheatstone bridge (see Fig. 2(EP).3). Two students perform an experiment in two way. The first student takes R_(2)=10 Omega and R_(1)=5Omega . The other student takes R_(2)=1000Omega and R_(1)=500Omega . In the standard arm, both take R_(3)=5Omega . Both find R=(R_(2))/(R_(1))R_(3)=10Omega within errors.

A student performs an experiment for determination of g [ = ( 4 pi^(2) L)/(T^(2)) ] , L ~~ 1m , and he commits an error of Delta L . For T he takes the time of n oscillations with the stop watch of least count Delta T . For which of the following data , the measurement of g will be most accurate ?

As student performs an experiment for determine of g[=(4pi^(2)L)/(T^(2))]. L approx 1m , and has commits an error of Delta L for T he tajes the teime of n osciollations wityh the stop watch of least count Delta T . For which of the following data the measurement of g will be most accurate?

A student performs an experiment to determine the Young's modulus of a wire, exactly 2m long, by Searle's method. In a partcular reading, the student measures the extension in the length of the wire to be 0.8mm with an uncertainty of +- 0.05mm at a load of exactly 1.0kg , the student also measures the diameter of the wire to be 04mm with an uncertainty of +-0.01mm . Take g=9.8m//s^(2) (exact). the Young's modulus obtained from the reading is