The diameter of a spherical bob, when measured with vernier callipers yielded the following values: 3.33 ~cm , 3.32 ~cm, 3.34 ~cm, 3.33 ~cm and 3.32 ~cm . The mean diameter to appropriate significant figures is:

Correct answer: A. 3.33 ~cm aligned Mean diameter & = [3.33 cm+3.32 cm+3.34 cm+3.33 cm+3.32 cm] 5 & =3.328 cm aligned After rounding off to 2 decimal places. Final mean diameter =3.33 cm

NEET 2023

Exam: NEET
Year: 2023
Subject: Physics
Chapter: Mathematics in Physics

NEET 2023 · Physics · Mathematics in Physics

The diameter of a spherical bob, when measured with vernier...

The diameter of a spherical bob, when measured with vernier callipers yielded the following values:

3.33 \mathrm{~cm}

3.32 \mathrm{~cm}, 3.34 \mathrm{~cm}, 3.33 \mathrm{~cm}

and

3.32 \mathrm{~cm}

. The mean diameter to appropriate significant figures is:

Options

A $3.33 \mathrm{~cm}$
B $3.32 \mathrm{~cm}$
C $3.328 \mathrm{~cm}$
D $3.3 \mathrm{~cm}$

Correct answer

A. $3.33 \mathrm{~cm}$

Step-by-step solution

\begin{aligned} \text{ Mean diameter } & =\frac{[3.33 \mathrm{ cm}+3.32 \mathrm{ cm}+3.34 \mathrm{ cm}+3.33 \mathrm{ cm}+3.32 \mathrm{ cm}]}{5} \\ & =3.328 \mathrm{ cm}\end{aligned}

After rounding off to 2 decimal places. Final mean diameter

=3.33 \mathrm{ cm}

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