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.

    Which of the following represents a volt

    A

    Joule/second

    B

    Watt/ampere

    C

    Watt/coulomb

    D

    Coulomb/joule

    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 :Voltage, Electrical Power, Energy, Current

    2.

    The dimensional formula of self-inductance is

    A

    [MLT−2  ]\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}\;} \right]

    B

    [ML2T−1A−2]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 1}}{{\rm{A}}^{ - 2}}} \right]

    C

    [ML2T−2A−2]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}{{\rm{A}}^{ - 2}}} \right]

    D

    [ML2T−2A−1]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}{{\rm{A}}^{ - 1}}} \right]

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :self-inductance, dimensional analysis, energy, magnetic field

    3.

    Solar constant is defined as energy received by earth per cm2{\rm{c}}{{\rm{m}}^2} per minute. The dimensions of solar constant are

    A

    [ML2T−3]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 3}}} \right]

    B

    [M2L0T−1]\left[ {{{\rm{M}}^2}{{\rm{L}}^0}{{\rm{T}}^{ - 1}}} \right]

    C

    [ML0T−3]\left[ {{\rm{M}}{{\rm{L}}^0}{{\rm{T}}^{ - 3}}} \right]

    D

    [MLT−2]\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}} \right]

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

    4.

    Which of the two have same dimensions

    A

    Force and strain

    B

    Force and stress

    C

    Angular velocity and frequency

    D

    Energy and strain

    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 :Dimensions, Physical quantities, Angular velocity, Frequency, Force, Strain, Stress, Energy

    5.

    erg−m−1erg - {m^{ - 1}} can be the unit of measure for

    A

    Force

    B

    Momentum

    C

    Power

    D

    Acceleration

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Units of measurement, Force, Energy, Work

    6.

    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

    7.

    The Planck constant is 6.626imes10−346.626 imes 10^{-34} J s. Express this in units of eV s (electron-volt seconds), given 1 eV = 1.602imes10−191.602 imes 10^{-19} J.

    A

    4.136imes10−154.136 imes 10^{-15} eV s

    B

    1.062imes10−521.062 imes 10^{-52} eV s

    C

    2.418imes10142.418 imes 10^{14} eV s

    D

    6.626imes10−156.626 imes 10^{-15} eV s

    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, Planck's Constant

    8.

    In the following list, the only pair which have different dimensions, is

    A

    Linear momentum and moment of a force

    B

    Planck’s constant and angular momentum

    C

    Pressure and modulus of electricity

    D

    Torque and potential energy

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Dimensions, Linear momentum, Moment of a force, Planck's constant, Angular momentum, Pressure, Modulus of elasticity, Torque, Potential energy

    9.

    What is the dimensional formula of mc2m{c^2}, where the letters have their usual meanings?

    A

    [MLT−1]\left[ {{\rm{ML}}{{\rm{T}}^{ - 1}}} \right]

    B

    [ML0T0]\left[ {{\rm{M}}{{\rm{L}}^0}{{\rm{T}}^0}} \right]

    C

    [ML2T−2]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}} \right]

    D

    [M−1L3T6]\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^3}{{\rm{T}}^6}} \right]

    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 :Dimensional Analysis, Mass, Speed of light, Energy

    10.

    The dimensions of pressure is equal to

    A

    Force per unit volume

    B

    Energy per unit volume

    C

    Force

    D

    energy

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

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