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Units and Measurements

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

The International System of Units

Subtopic

The International System of Units under Units and Measurements for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which SI prefix represents the factor 10110^{1}?

    A.

    Hecto

    B.

    Deca

    C.

    Deci

    D.

    Kilo

  2. 2.

    What is the correct symbol for the SI unit 'mole'?

    A.

    mol

    B.

    M

    C.

    m

    D.

    mole

  3. 3.

    Which of the following is a derived SI unit?

    A.

    Meter

    B.

    Candela

    C.

    Kelvin

    D.

    Pascal

Download the worksheet for Units and Measurements - The International System of Units to practice offline. It includes additional chapter-level practice questions.

Significant Figures

Subtopic

Significant Figures under Units and Measurements for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The number of significant figures in 0.0000100.000010 is:

    A.

    1

    B.

    2

    C.

    6

    D.

    7

  2. 2.

    Calculate 1.234+0.0011.234 + 0.001 and round to correct significant figures.

    A.

    1.235

    B.

    1.24

    C.

    1.2

    D.

    1.23

  3. 3.

    The number of significant figures in 0.0010.001 is:

    A.

    1

    B.

    3

    C.

    4

    D.

    0

Download the worksheet for Units and Measurements - Significant Figures to practice offline. It includes additional chapter-level practice questions.

Dimensional Analysis and its Applications

Subtopic

Dimensional Analysis and its Applications under Units and Measurements for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In the equation v=u+atv = u + at, the term 'at' must have the dimensions of:

    A.

    Acceleration

    B.

    Velocity

    C.

    Time

    D.

    Distance

  2. 2.

    The dimensions of solid angle are:

    A.

    [M0L0T0][M^0L^0T^0]

    B.

    [L2][L^2]

    C.

    [L3][L^3]

    D.

    [L−2][L^{-2}]

  3. 3.

    The dimensional formula for refractive index is:

    A.

    [M0L0T0][M^0L^0T^0]

    B.

    [LT−1][LT^{-1}]

    C.

    [L][L]

    D.

    [M1L0T0][M^1L^0T^0]

Download the worksheet for Units and Measurements - Dimensional Analysis and its Applications to practice offline. It includes additional chapter-level practice questions.

Errors in Measurement

Subtopic

Errors in Measurement under Units and Measurements for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of these is the correct formula for Mean Absolute Error (Δamean\Delta a_{mean})?

    A.

    (∑Δai)/n(\sum \Delta a_i) / n

    B.

    (∑∣Δai∣)/n(\sum |\Delta a_i|) / n

    C.

    (∑ai)/n(\sum a_i) / n

    D.

    (∑∣ai∣)/n(\sum |a_i|) / n

  2. 2.

    Errors that occur due to the carelessness of the observer are:

    A.

    Systematic errors

    B.

    Random errors

    C.

    Gross errors

    D.

    Least count errors

  3. 3.

    If y=xny = x^n, then Δy/y\Delta y / y is equal to:

    A.

    n(Δx)n (\Delta x)

    B.

    (Δx)n(\Delta x)^n

    C.

    n(Δx/x)n (\Delta x / x)

    D.

    Δx/(nx)\Delta x / (n x)

Download the worksheet for Units and Measurements - Errors in Measurement to practice offline. It includes additional chapter-level practice questions.

Units and Measurements - Class 11 Physics (CBSE) | Krit.club