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JEE Main 20245 AprilMorning Shift
Exam
JEE Main
Year
2024
Date
5 April
Shift
Morning Shift
Subject
Physics
Chapter
Mathematics in Physics

JEE Main 2024 · 5 April · Morning Shift · Physics · Mathematics in Physics

Time periods of oscillation of the same simple pendulum measured...

Time periods of oscillation of the same simple pendulum measured using four different measuring clocks were recorded as 4.62 s,4.632 s,4.6 s4.62 \mathrm{~s}, 4.632 \mathrm{~s}, 4.6 \mathrm{~s} and 4.64 s4.64 \mathrm{~s}. The arithmetic mean of these readings in correct significant figure is :

Options

  1. A5 s5 \mathrm{~s}
  2. B4.623 s4.623 \mathrm{~s}
  3. C4.6 s4.6 \mathrm{~s}
  4. D4.62 s4.62 \mathrm{~s}

Correct answer

C. 4.6 s4.6 \mathrm{~s}

Step-by-step solution

Sum of number by considering significant digi sum =4.6+4.6+4.6+4.6=18.4\text{sum }=4.6+4.6+4.6+4.6=18.4 Arithmetic Mean = sum 4=18.44=4.6=\frac{\text{ sum }}{4}=\frac{18.4}{4}=4.6
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