Units and Measurements

Related Questions

• If the time period \[(T)\] of vibration of a liquid drop depends on surface tension \[(S)\], radius \[(r)\] of the drop and density \[(\rho )\] of the liquid, then the expression of \[T\] is

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• The unit of \[e.m.f.\]is

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• According to Joule's law of heating, heat produced $H = {I^2}$Rt, where I is current, R is resistance and t is time. If the errors in the measurement of I, R and t are 3%, 4% and 6% respectively then error in the measurement of H is

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• The relative density of material of a body is found by weighing it first in air and then in water. If the weight in air is (5.00$ \pm 0.05$) Newton and weight in water is (4.00$ \pm $0.05) Newton. Then the relative density along with the maximum permissible percentage error is

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• Dimensional formula of velocity of sound is

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