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A vernier calliper has 20 divisions on t...

A vernier calliper has 20 divisions on the vernier scale. One centimetre on the main scale is divided into 20 equal parts. Find the least count of this instrument.

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19 divisions on the main scale of a vernier callipers coincide with 20 divisions on the vernier scale. If each division on the main scale is of 1 cm , determine the least count of instrument.

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Knowledge Check

  • A vernier callipers has 20 divisions on the vernier scale which coincides with 19mm on the main scale. Its least count is

    A
    `0.5mm`
    B
    `1mm`
    C
    `0.05mm`
    D
    `(1)/(4)mm`

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    A
    0.5 mm
    B
    1 mm
    C
    2 mm
    D
    `1//4` mm

  • In a vernier calliper, N divisions of vernier scale coincide with (N-1) divisions of main scale (in which division represent 1mm). The least count of the instrument in cm. should be

    A
    N
    B
    `N-1`
    C
    `(1)/(10 N)`
    D
    `(1)/(N-1)`

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    Explore conceptually related problems

    N divisions on the main scale of a vernier calliper coincide with (N + 1) divisions of the vernier scale.If each division ofmain scale is 'a’ units, then the least count of the instrument is

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