1.

    The speed of light is approximately 3imes1083 imes 10^8 m/s. If a star is 4 light-years away, what is its distance in kilometers? (1 light-year = distance light travels in one year)

    A

    3.8imes10103.8 imes 10^{10} km

    B

    1.2imes10131.2 imes 10^{13} km

    C

    3.8imes10133.8 imes 10^{13} km

    D

    1.2imes1091.2 imes 10^9 km

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Unit Conversion, Speed, Distance, Time

    Related Questions

    1.

    The dimensions of stress are equal to

    A

    Force

    B

    Pressure

    C

    Work

    D

    1Pressure\frac{1}{{{\rm{Pressure}}}}

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Stress, Pressure, Dimensions

    2.

    Select the pair whose dimensions are same

    A

    Pressure and stress

    B

    Stress and strain

    C

    Pressure and force

    D

    Power and force

    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, Pressure, Stress, Strain, Force, Power

    3.

    The dimensions of couple are

    A

    ML2T−2M{L^2}{T^{ - 2}}

    B

    MLT−2ML{T^{ - 2}}

    C

    ML−1T−3M{L^{ - 1}}{T^{ - 3}}

    D

    ML−2T−2M{L^{ - 2}}{T^{ - 2}}

    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 :Couple, Dimensions, Torque, Force, Distance

    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.

    An athletic coach told his team that muscle times speed equals power. What dimensions does he view for muscle

    A

    MLT−2ML{T^{ - 2}}

    B

    ML2T−2M{L^2}{T^{ - 2}}

    C

    MLT2ML{T^2}

    D

    L

    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 :Dimensions, Power, Speed, Force

    6.

    The dimensions of Planck’s constant is same as that of

    A

    Angular momentum

    B

    Linear momentum

    C

    Work

    D

    Coefficient of viscosity

    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 :Planck's constant, Dimensions, Angular momentum, Linear momentum, Work, Coefficient of viscosity

    7.

    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

    8.

    Which one has the dimensions different from the remaining three

    A

    Power

    B

    Work

    C

    Torque

    D

    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 :2 mins
    🔄Ncert Concepts :Dimensions, Power, Work, Torque, Energy

    9.

    The dimensions of K in the equation W=12  Kx2W = \frac{1}{2}\;K{x^2} is

    A

    M1L0T−2{M^1}{L^0}{T^{ - 2}}

    B

    M0L1T−1{M^0}{L^1}{T^{ - 1}}

    C

    M1L1T−2{M^1}{L^1}{T^{ - 2}}

    D

    M1L0T−1{M^1}{L^0}{T^{ - 1}}

    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 :Work, Dimensions, Dimensional Analysis

    10.

    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

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