1.

    The viscous force FF acting on a sphere of radius rr moving with velocity vv through a fluid of viscosity η\eta is given by F=6πηrv+kr2v2F = 6\pi \eta rv + kr^2v^2. The dimensions of kk are:

    A

    ML⁻³

    B

    ML⁻¹T⁻¹

    C

    MLT⁻²

    D

    M⁻¹L³

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Principle of Homogeneity, Dimensional Analysis, Viscosity

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    1.

    The unit of surface tension in SI system is

    A

    Dyne/cm2Dyne/c{m^2}

    B

    Newton /m

    C

    Dyne/cm

    D

    Newton/m2Newton/{m^2}

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    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Remembering
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    2.

    newton-second is the unit of

    A

    Velocity

    B

    Angular momentum

    C

    Momentum

    D

    Energy

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    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
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    3.

    SI unit of electric intensity is

    A

    Coulomb

    B

    Coulomb/m2Coulomb/{m^2}

    C

    Newton

    D

    Newton/ coulomb

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    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
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    4.

    Unit of stress is

    A

    N/m

    B

    N-m

    C

    N/m2N/{m^2}

    D

    N−m2N - {m^2}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
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    5.

    Which of the following is not equal to watt

    A

    joule/second

    B

    ampere imesimes volt

    C

    (ampere)2imesohm{(ampere)^2} imes ohm

    D

    ampere/volt

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
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    The unit of specific resistance is

    A

    Ohm/cm2Ohm/c{m^2}

    B

    Ohm/cm

    C

    Ohm-cm

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    (Ohm−cm)−1{(Ohm - cm)^{ - 1}}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
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    7.

    If x=a+bt2x = a + bt^2, where xx is in meters and tt is in seconds, what are the dimensions of bb?

    A

    LT−2LT^{-2}

    B

    LT−1LT^{-1}

    C

    L2T−2L^2T^{-2}

    D

    LL

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    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
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    Which relation is wrong

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    E = 1/2mv

    D

    E = hv

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    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
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    Temperature can be expressed as a derived quantity in terms of any of the following

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    Length and mass

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    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Understanding
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    ⚡ Time Required :1 mins
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    10.

    SI unit of intensity of wave is

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    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}}

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    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Priniciple Of Homoginity
    🎓 Ncert Level:Understanding
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    ⚡ Time Required :2 mins
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