Systems of Units and Unit Conversion questions with solutions

Showing 1–10 of 66 questions

• MCQmediumUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  1 bar is equal to:

  Options

  • Option A

    10³ Pa

  • Option B

    10⁴ Pa

  • Option C

    10⁵ Pa

  • Option D

    10⁶ Pa

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  1 electron-volt is approximately:

  Options

  • Option A

    1.6×10⁻¹⁹ J

  • Option B

    1.6×10¹⁹ J

  • Option C

    9.1×10⁻³¹ J

  • Option D

    6.63×10⁻³⁴ J

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  Statement I: Astronomical unit (AU), parsec (pc) and light-year (ly) are units of astronomical distance. Statement II: AU < pc < ly. Choose the correct answer.

  Options

  • Option A

    Both statements are incorrect

  • Option B

    Both statements are correct

  • Option C

    Statement I is incorrect but Statement II is correct

  • Option D

    Statement I is correct but Statement II is incorrect

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  JEE Mains11 April 2023Shift 1Morning Shift

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• MatchmediumUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  Match List I with List II and choose the correct option.

  List 1

  1. Capacitance

  2. Coefficient of viscosity

  3. Planck constant

  4. Current density

  List 2

  1. Pa s

  2. F

  3. A m⁻²

  4. J s

  Options

  • Option A

    P-2, Q-1, R-4, S-3

  • Option B

    P-1, Q-2, R-3, S-4

  • Option C

    P-2, Q-4, R-1, S-3

  • Option D

    P-3, Q-1, R-4, S-2

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  JEE MainsJEE Advanced

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  Which is equivalent to 1 tesla?

  Options

  • Option A

    1 Wb·m²

  • Option B

    1 Wb/m²

  • Option C

    1 V/m

  • Option D

    1 N·m/A

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  An energy of 3.2×10⁻¹⁸ J is equal to:

  Options

  • Option A

    2 eV

  • Option B

    20 eV

  • Option C

    200 eV

  • Option D

    0.2 eV

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  1 poise is equal to:

  Options

  • Option A

    0.1 Pa·s

  • Option B

    10 Pa·s

  • Option C

    10⁻⁴ Pa·s

  • Option D

    1 Pa·s

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  If a quantity has dimensions [ML²T⁻³] and its numerical value is 20, then on changing M,L,T units by factors 2, 1/2 and 4, respectively, its new numerical value is:

  Options

  • Option A

    2560

  • Option B

    640

  • Option C

    160

  • Option D

    40

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  Unit of Stefan's constant is:

  Options

  • Option A

    W m² K⁴

  • Option B

    W m² K⁻⁴

  • Option C

    W m⁻² K⁻¹

  • Option D

    W m⁻² K⁻⁴

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  AIPMT 2002NEET

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• MCQeasyUnits, Dimensions, Measurements and ErrorsSystems of Units and Unit Conversion

  In a new system, M′ = 2 kg, L′ = 5 m and T′ = 10 s. The numerical value of an energy of 100 J is:

  Options

  • Option A

    100

  • Option B

    200

  • Option C

    400

  • Option D

    40

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