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    JEE Mains 2026 Chapter-Wise Weightage – Physics, Chemistry, Math

    System Of Unit - Practice Questions & MCQ

    Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

    Quick Facts

    • System of unit is considered one of the most asked concept.

    • 18 Questions around this concept.

    Solve by difficulty

    1 a.m.u. is equivalent to -

    In which system of units foot is unit of length-

    Temperature is a derived quantity in terms of -

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    Which of the following is a system of units?

    Chandra Shekar unit is used to measure:

    The density of wood is 0.5 gm/cc in the CGS system of units. The corresponding value in the MKS unit is:

    Young’s modulus of steel is $1.9 \times 10^{11} \mathrm{~N} / \mathrm{m}^2$. When expressed in CGS units of dynes/cm2, it will be equal to:

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    The unit of density of a substance is -

    The weight per unit per volume of a substance is defined as

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    Concepts Covered - 1

    System of unit

    A complete set of units, for all kinds of physical quantities (both fundamental and derived ), is known as a system of units.

    Types of System of unit

    • C.G.S. system- In this system, fundamental units are centimeter (cm), gram (g) and second (s).

    • M.K.S. System- In this system, fundamental units are meter(m), kilogram(kg) and second (s).

    • F.P.S. system- In this system foot(ft), pound(lb) and second(s) is used for measurement of length, mass and timerespectively.

    • S.I. System- It is known as the International System of units. There are seven fundamental quantities in this system.

     It is the modification of m.k.s system   

    Fundamental Quantity

    Fundamental Units

    Symbol

    Length

    meter

    m

    Mass

    Kilogram

    Kg

    Time

    second

    s

    Electric current

    Ampere

    A

    Temperature

    Kelvin

    K

    Amount of substance

    mole

    mol

    Luminous Intensity

    candela

    cd

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    System of unit

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