1.

    Which of the following equations is dimensionally homogeneous?

    A

    v = u + at

    B

    s = ut + at

    C

    v^2 = u^2 + a

    D

    s = vt^2

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Principle of Homogeneity, Dimensions

    Related Questions

    1.

    A physical quantity is measured and its value is found to be nu where where n= numerical value and u= unit. Then which of the following relations is true

    A

    n∝u2n \propto {u^2}

    B

    n  ∝un\; \propto u

    C

    n∝un \propto \sqrt u

    D

    n∝1un \propto \frac{1}{u}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Physical Quantities, Units, Proportionality

    2.

    The unit of angular acceleration in the SI system is

    A

    N  kg−1N\;k{g^{ - 1}}

    B

    ms−2m{s^{ - 2}}

    C

    rad  s−2rad\;{s^{ - 2}}

    D

    m  kg−1Km\;k{g^{ - 1}}K

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :angular acceleration, SI units

    3.

    Consider a new system of units in which c(speed of light in vacuum), h(Planck’s constant) and G(gravitational constant) are taken as fundamental units. Which of the following would correctly represent mass in this new system?

    A

    hcG\sqrt {\frac{{hc}}{G}}

    B

    Gch\sqrt {\frac{{Gc}}{h}}

    C

    hGc\sqrt {\frac{{hG}}{c}}

    D

    hGc\sqrt {hGc}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Dimensional Analysis, Fundamental Units, Planck's Constant, Speed of Light, Gravitational Constant

    4.

    Which relation is wrong

    A

    λ = h/p

    B

    E = mc^2

    C

    E = 1/2mv

    D

    E = hv

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :unit conversion, energy units, length units, force units

    5.

    Temperature can be expressed as a derived quantity in terms of any of the following

    A

    Length and mass

    B

    Mass and time

    C

    Length, mass and time

    D

    None of these

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Derived quantities, Fundamental quantities, Temperature

    6.

    Let L denote the self-inductance of coil which is in series with a capacitor of capacitance C. Which of the following has the unit second?

    A

    LC\sqrt {LC}

    B

    C/L

    C

    CL

    D

    L2/C2{L^2}/{C^2}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :self-inductance, capacitance, units, dimensional analysis

    7.

    Which of the following quantities has not been expressed in proper unit

    A

    Torque : Newton metre

    B

    Stress : Newton metre−2{\rm{metr}}{{\rm{e}}^{ - 2}}

    C

    Modulus of elasticity : Newton metre−2{\rm{metr}}{{\rm{e}}^{ - 2}}

    D

    Surface tension : Newton metre−2{\rm{metr}}{{\rm{e}}^{ - 2}}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Units of physical quantities, Torque, Stress, Modulus of elasticity, Surface tension

    8.

    If the units of mass, length and time are doubled, unit of angular momentum will be

    A

    Doubled

    B

    Tripled

    C

    Quadrupled

    D

    8 times the original value

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Angular Momentum, Units and Dimensions

    9.

    One slug is equivalent to 14.6 kg. A force of 10 pound is applied on a body of 1 kg. The acceleration of the body is

    A

    44.5 ms−244.5\,m{s^{ - 2}}

    B

    4.448 ms−24.448\,m{s^{ - 2}}

    C

    44.4 ms−244.4\,m{s^{ - 2}}

    D

    None of these

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Newton's Second Law, Unit Conversion

    10.

    SI unit of intensity of wave is

    A

    Jm−2s−1{\rm{J}}{{\rm{m}}^{ - 2}}{{\rm{s}}^{ - 1}}

    B

    Jm−1s−2{\rm{J}}{{\rm{m}}^{ - 1}}{{\rm{s}}^{ - 2}}

    C

    Wm−2{\rm{W}}{{\rm{m}}^{ - 2}}

    D

    Jm−2{\rm{J}}{{\rm{m}}^{ - 2}}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Intensity, Units, Power, Area

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