Home
Class 11
PHYSICS
The least count of a screw gauge is ...

The least count of a screw gauge is 0.005 cm . The diameter of wire is 0.002 cm as measured by it. The perecentage error in measurement is

A

0.25

B

0.2

C

0.15

D

0.05

Text Solution

Verified by Experts

The correct Answer is:
a
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise CRITICAL THINKING (MISCELLANEOUS )|3 Videos

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING (FUNDAMENTAL AND DERIVED UNITS)|14 Videos

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise CRITICAL THINKING ( ORDER OF MAGNITUDE AND SIGNIFICANT FIGURE)|9 Videos

  • MAGNETISM

    TARGET PUBLICATION|Exercise MCQs|150 Videos

  • RAY OPTICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

What is the least count of a standard screw gauge

While performing Searle's experiment, a weight of 50N is suspended from a wire. The extension produced is 0.121cm and is measured by a micrometer of least count 0.001cm . The diameter of the wire is 0.700cm , measured by a screw gauge of least count 0.001cm . The length is 100 cm measured with the help of scale of least count 0.1 cm. Calculate the young's modulus of material of wire, given by Y=(FL)/(Al) where F is weight, L is length of wire, A is area of wire and l is extension produced.

Knowledge Check

  • The least count of a screw gauge is defined as

    A
    `"distance moved by thimble on main scale"/"number of rotation of thimble"`
    B
    `"pitch of the screw"/"number of divisions on circular scale"`
    C
    `"number of rotation of thimble"/"number of circular scale divisions"`
    D
    None of the above

  • Least count of screw gauge is defined as.

    A
    `("distance moved by thimble on main scale")/("number of rotation of thimble")`
    B
    `("pitch of the screw") /(" number of divisions on circular scale")`
    C
    `("number of rotation of thimble") /(" number of circular scale divisions")`
    D
    None of the above.

  • The least count of screw gauge is (1)/(100)mm and the pitch of the screw is 1mm . The maximum percentage error of the instrument is

    A
    `5%`
    B
    `2%`
    C
    `1%`
    D
    `10%`

    • Similar Questions

    Explore conceptually related problems

    Thickness of a cylinder measured using a screw gauge of least count 0.01cm is found to be equal to 0.80cm .The percentage error in measurement is

    Thickness of a pencil measured by using a screw gauge (least count.001 cm) comes out to be 0.802 cm .The percentage error in the measurement is

    The circumference of a circle is measured as 56 cm with an error 0.02 cm. The percentage error in its area is

    The circumference of a scircle is measured as 56 cm with an error 0.02 cm. The percentage error in its area, is

    The least counts of a vernier calipers and a screw gauge are in the ratio of 5: 1 . The main scales of both the instruments are marked in mm. The zero error on the vernier calipers is +0.15 mm where as that on screw gauge is -0.06 mm. If the diameter of a rod lies between 0.9 cm and 1.0 cm and x and y are the VCD and CSR on the two instruments relation between x and y given that the number of C.S.D = 100 is

    Home
    Profile