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.

    If force (F), mass (M), length (L) are taken as fundamental quantities, dimensions of the time will be

    A

    [MLF]\left[ {MLF} \right]

    B

    [MLF−1]\left[ {ML{F^{ - 1}}} \right]

    C

    [M1/2L1/2F1/2]\left[ {{M^{1/2}}{L^{1/2}}{F^{1/2}}} \right]

    D

    [M1/2L1/2F−1/2]\left[ {{M^{1/2}}{L^{1/2}}{F^{ - 1/2}}} \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 :3 mins
    🔄Ncert Concepts :Dimensional Analysis, Fundamental Quantities, Force, Mass, Length, Time

    2.

    How many milligrams are there in 2 grams?

    A

    20 mg

    B

    200 mg

    C

    2000 mg

    D

    0.002 mg

    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 :Unit Conversion, Mass

    3.

    The dimensions of farad are

    A

    M−1L−2T2Q2{M^{ - 1}}{L^{ - 2}}{T^2}{Q^2}

    B

    M−1L−2TQ{M^{ - 1}}{L^{ - 2}}TQ

    C

    M−1L−2T−2Q{M^{ - 1}}{L^{ - 2}}{T^{ - 2}}Q

    D

    M−1L−2TQ2{M^{ - 1}}{L^{ - 2}}T{Q^2}

    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 :capacitance, dimensional analysis, charge, mass, length, time

    4.

    Dimensional formula for force is

    A

    [M1L2T−2]\left[ {{M^1}{L^2}{T^{ - 2}}} \right]

    B

    [M1L1T−2]\left[ {{M^1}{L^1}{T^{ - 2}}} \right]

    C

    [M1L−1T−2  ]\left[ {{M^1}{L^{ - 1}}{T^{ - 2}}\;} \right]

    D

    [M1L−2T−2]\left[ {{M^1}{L^{ - 2}}{T^{ - 2}}} \right]

    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 :Dimensional Analysis, Force, Mass, Length, Time

    5.

    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

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