1.

    The physical quantity that has no dimensions is

    A

    Angular Velocity

    B

    Linear momentum

    C

    Angular momentum

    D

    Strain

    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 :Dimensional Analysis, Strain

    Related Questions

    1.

    Electric displacement is given by D=εED = \varepsilon E,

    Here, ε\varepsilon =electric permittivity

    E=electric field strength

    The dimensions of electric displacement are

    A

    [ML−2TA]\left[ {{\rm{M}}{{\rm{L}}^{ - 2}}{\rm{TA}}} \right]

    B

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

    C

    [L−2TA]\left[ {{{\rm{L}}^{ - 2}}{\rm{TA}}} \right]

    D

    None of these

    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 :electric displacement, electric permittivity, electric field strength, dimensional analysis

    2.

    The wavelength of a light wave is 500 nm. Express this wavelength in meters.

    A

    5 x 10^-9 m

    B

    5 x 10^-7 m

    C

    5 x 10^7 m

    D

    5 x 10^9 m

    Question Tags
    📚 Subject:Physics
    📑 Chapter:Units And Measurement
    🎯Topic:Conversion Of Units For One System To Another
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :unit conversion, wavelength, scientific notation

    3.

    The dimensional formula for impulse is same as the dimensional formula for

    A

    Momentum

    B

    Force

    C

    Rate of change of momentum

    D

    Torque

    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 :Impulse, Momentum, Dimensional Analysis

    4.

    Dimensions of CR are those of

    A

    Frequency

    B

    Energy

    C

    Time period

    D

    Current

    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 :RC circuits, Time constant, Dimensional analysis

    5.

    If C is the capacitance and V is the potential, the dimensional formula for CV2C{V^2} is

    A

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

    B

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

    C

    [ML2  T−2]\left[ {{\rm{M}}{{\rm{L}}^2}{\rm{\;}}{{\rm{T}}^{ - 2}}} \right]

    D

    [ML−2T−2]\left[ {{\rm{M}}{{\rm{L}}^{ - 2}}{{\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 :capacitance, potential, dimensional analysis, energy

    6.

    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

    7.

    The dimensions of CV2C{V^2} matches with the dimensions of

    A

    L2I{L^2}I

    B

    L2I2{L^2}{I^2}

    C

    LI2L{I^2}

    D

    1LI  \frac{1}{{LI\;}}

    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, Voltage, Inductance, Dimensional Analysis

    8.

    [ML−2T−2]\left[ {{\rm{M}}{{\rm{L}}^{ - 2}}{{\rm{T}}^{ - 2}}} \right] represents dimensional formula of which of the following physical quantities?

    A

    Energy

    B

    pressure

    C

    Torque

    D

    Pressure gradient

    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, Pressure, Pressure Gradient, Energy, Torque

    9.

    The dimensional formula of universal gas constant is

    A

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

    B

    [M2LT−2heta]\left[ {{{\rm{M}}^2}{\rm{L}}{{\rm{T}}^{ - 2}}{\rm{heta }}} \right]

    C

    [ML3T−1heta−1]\left[ {{\rm{M}}{{\rm{L}}^3}{{\rm{T}}^{ - 1}}{{\rm{heta }}^{ - 1}}} \right]

    D

    None of these

    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 :Ideal Gas Law, Dimensional Analysis

    10.

    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

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