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Units, Dimensions and Measurement — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsUnits, Dimensions and Measurement1 Mark
MCQ
The percentage error in the above problem is
  • A
    $7 \%$
  • B
    $5.95 \%$
  • ✓
    $8.95 \%$
  • D
    $9.85 \%$
✓

Answer

Correct option: C.
$8.95 \%$
(c) $\%$ error in velocity $=\%$ error in $L+\%$ error in $t$
$=\frac{0.2}{13.8} \times 100+\frac{0.3}{4} \times 100 $
$=1.44+7.5=8.94 \%$

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