Start Free Mock LoginAlready registered? Login here

Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

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

Options:

Answer:

Solution:

Random error is inversely proportional to the number of observations

$∴$ $Error \propto \frac{1}{o b s e r v a t i o n}$

$\frac{E_{1}}{E_{2}} = \frac{O_{2}}{O_{1}}$

$E_{2} = \frac{x}{\frac{400}{100}}$

$E_{2} = \frac{x}{4}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...