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Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousMedium2 minQB

PhysicsMediumsingle choice

The least count of a stop watch is 0.2 s . The time of 20 oscillations of a pendulum is measured to be 25 s . The percentage error in the time period is

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Answer:

Solution:

$T = \frac{t}{n}$

$Δ T = \frac{Δ t}{n}$

$\frac{Δ T}{T} \times 100 = \frac{Δ t}{t} \times 100 = \frac{0.2}{25} \times 100 = 0.8 %$

Subject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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