COMEDK · Physics · 27. Dual Nature of Matter
A body accelerates from rest with a uniform acceleration \(a\) for a time \(t\). The uncertainty in \(a\) is \(8 \%\) and the uncertainty in \(t\) is \(4 \%\). The uncertainty in the speed is
- A \(32 \%\)
- B \(12 \%\)
- C \(8 \%\)
- D \(2 \%\)
Answer & Solution
Correct Answer
(B) \(12 \%\)
Step-by-step Solution
Detailed explanation
Given, uncertainity in acceleration, \(\frac{\Delta a}{a} \times 100=8 \%\) Uncertainity in time, \(\frac{\Delta t}{t} \times 100=4 \%\) Since, body starts motion from rest, hence by the first equation of motion,…
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