Circular scale of a micrometer has 200 divisions and pitch of 2,mm . measured value of thickness of

English

Gujarati

Hindi

1.Units, Dimensions and Measurement

medium

The circular scale of a micrometer has $200$ divisions and pitch of $2\,mm$ . Find the measured value of thickness of a thin sheet .......... $mm$

A

$3.41$

B

$6.41$

C

$3.46$

D

$3.51$

Solution

Least count $=\frac{\text { pitch }}{\text { No. of divisions }}$

$=\frac{2}{200}=0.01 \mathrm{mm}$

Reading $=3 \times 2+(46-5)(0.01)=6.41 \mathrm{mm}$

Standard 11

Physics

Share

Similar Questions

A screw gauge has least count of $0.01\, mm$ and there are $50$ divisions in its circular scale. The pitch of the screw gauge is $……..mm$

easy

(NEET-2020)

A screwgauage has pitch $1.5\; mm$ and there is no zero error. Linear scale has marking at $MSD = 1\; mm$ and there are $100$ equal division of circular scale. When diameter of a sphere is measured with instrument, main scale is having $2\; mm$ mark visible on linear scale, but $3\; mm$ mark is not visible, $76^{th}$ division of circuler scale is in line with linear scale. ………. $mm$ is the diameter of sphere.

hard

A student measured the diameter of a wire using a screw gauge with the least count $0.001\, cm$ and listed the measurements. The measured value should be recorded as

medium

(AIEEE-2012)

The diameter of a sphere is measured using a vernier caliper whose $9$ divisions of main scale are equal to $10$ divisions of vernier scale. The shortest division on the main scale is equal to $1 \mathrm{~mm}$. The main scale reading is $2 \mathrm{~cm}$ and second division of vernier scale coincides with a division on main scale. If mass of the sphere is $8.635 \mathrm{~g}$, thedensity of the sphere $1 \mathrm{~s}$ :

hard

(JEE MAIN-2024)

A screw gauge with a pitch of $0.5 \ mm$ and a circular scale with $50$ divisions is used to measure the thickness of a thin sheet of Aluminium. Before starting the measurement, it is found that wen the two jaws of the screw gauge are brought in contact, the $45^{th} $division coincides with the main scale line and the zero of the main scale is barely visible. What is the thickness of the sheet (in $mm$) if the main scale reading is $0.5\ mm$ and the $25^{th}$ division coincides with the main scale line

medium

(JEE MAIN-2016)