Physics - Error Question with Solution | TestHub

PhysicsErrorMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

The focal length of a mirror is given by $\frac{1}{f} = \frac{1}{u} + \frac{1}{v}$ where $u$ and $v$ represent object and image distances respectively. The maximum relative error in $f$ is

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Solution:

$f = \frac{u v}{u + v}, \frac{∆ f}{f} = \frac{∆ u}{u} + \frac{∆ v}{v} + \frac{Δ(u + v)}{u + v}$

Stream:NTA_ABHYASSubject:PhysicsTopic:ErrorSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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