1.

    The ionization energy of hydrogen is 13.6 eV. Express this energy in joules per mole using the following conversions: 1 eV = 1.602imes10−191.602 imes 10^{-19} J and Avogadro's number = 6.022imes10236.022 imes 10^{23} mol−1mol^{-1}.

    A

    1.31imes1031.31 imes 10^3 J/mol

    B

    2.18imes10−202.18 imes 10^{-20} J/mol

    C

    1.31imes1061.31 imes 10^6 J/mol

    D

    8.21imes1058.21 imes 10^5 J/mol

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Unit Conversion, Energy, Mole Concept

    Related Questions

    1.

    Dimensions of the following three quantities are the same

    A

    Work, energy, force

    B

    Velocity, momentum, impulse

    C

    Potential energy, kinetic energy, momentum

    D

    Pressure, stress, coefficient of elasticity

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Dimensional Analysis, Work, Energy, Force, Velocity, Momentum, Impulse, Pressure, Stress, Coefficient of Elasticity

    2.

    What are the units of K=1/4πε0K = 1/4\pi {\varepsilon _0}

    A

    C2N−1m−2{C^2}{N^{ - 1}}{m^{ - 2}}

    B

    Nm2C−2N{m^2}{C^{ - 2}}

    C

    Nm2C2N{m^2}{C^2}

    D

    UnitlessUnitless

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Coulomb's Law, Permittivity of Free Space, Units Analysis

    3.

    Ampere-hour is a unit of

    A

    Quantity of electricity

    B

    Strength of electric current

    C

    Power

    D

    Energy

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Quantity of electricity, Electric current, Units of measurement

    4.

    The physical quantity angular momentum has the same dimensions as that of

    A

    Work

    B

    Force

    C

    Momentum

    D

    Planck’s constant

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :angular momentum, dimensions, Planck's constant, work, force, momentum

    5.

    Which of the following quantities has the same dimensions as that of energy

    A

    Power

    B

    Force

    C

    Momentum

    D

    Work

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Dimensions, Energy, Work, Power, Force, Momentum

    6.

    Dimension of electric current is

    A

    [A]

    B

    [A T]

    C

    [M L T⁻²]

    D

    [M L² T⁻³ A⁻¹]

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Dimensional Analysis, Electric Current

    7.

    Which of the following pairs does not have similar dimensions

    A

    Stress and pressure

    B

    Angle and strain

    C

    Tension and surface tension

    D

    Planck’s constant and angular momentum

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Dimensional Analysis, Stress, Pressure, Angle, Strain, Tension, Surface Tension, Planck's Constant, Angular Momentum

    8.

    The dimensions of shear modulus are

    A

    MLT−1ML{T^{ - 1}}

    B

    ML2T−2M{L^2}{T^{ - 2}}

    C

    ML−1T−2M{L^{ - 1}}{T^{ - 2}}

    D

    MLT−2ML{T^{ - 2}}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Shear modulus, Dimensional analysis, Stress, Strain

    9.

    Dimensions of impulse are same as that of

    A

    Force

    B

    Momentum

    C

    Energy

    D

    Acceleration

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Impulse, Momentum, Dimensional Analysis

    10.

    A rectangular field is 200 m long and 150 m wide. What is its area in hectares?

    A

    2 hectares

    B

    3 hectares

    C

    4 hectares

    D

    5 hectares

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Unit Conversion, Area

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