STANDARDPhysics-Units and Measurements
STANDARD Physics Error Analysis MCQ Question
Type: MCQ-numerical-Medium-Class 11
A body travels uniformly a distance of (13.8 ± 0.2) m in a time (4.0 ± 0.3) s. Its velocity with error limits is
A
(3.5 ± 0.6) m s⁻¹
B
(3.5 ± 0.3) m s⁻¹
C
(6.1 ± 0.6) m s⁻¹
D
(6.1 ± 0.3) m s⁻¹
Correct Answer
Option B
Detailed Explanation
Here, s = (13.8 ± 0.2) m, t = (4.0 ± 0.3) s. The velocity, v = s/t = 3.45 m s⁻¹ (rounded off to first place of decimal). The error in velocity is calculated as Δv/v = Δs/s + Δt/t = 0.0895. Therefore, velocity = (3.5 ± 0.3) m s⁻¹.
Found an issue with this question?