unit and conversion of units questions with solutions

Showing 1–10 of 66 questions

• MCQeasyUnit dimension and errorunit and conversion of units

  A density of 1 g cm⁻³ in SI units is:

  Options

  • Option A

    1 kg m⁻³

  • Option B

    10 kg m⁻³

  • Option C

    100 kg m⁻³

  • Option D

    1000 kg m⁻³

  Check answerShow answer
  Open question & full solution →
• MCQeasyUnit dimension and errorunit and conversion of units

  Which is equivalent to 1 volt?

  Options

  • Option A

    1 J·C

  • Option B

    1 J/C

  • Option C

    1 C/J

  • Option D

    1 W·C

  Check answerShow answer
  Open question & full solution →
• MCQmediumUnit dimension and errorunit and conversion of units

  Electric field in a certain region is given by E = (A/x²)î + (B/y³)ĵ. The SI units of A and B are:

  Options

  • Option A

    N m³ C⁻¹ ; N m² C⁻¹

  • Option B

    N m² C⁻¹ ; N m³ C⁻¹

  • Option C

    N m³ C ; N m² C

  • Option D

    N m² C ; N m³ C

  Check answerShow answer

  JEE Mains30 January 2023Shift 1Morning Shift

  Open question & full solution →
• MCQeasyUnit dimension and errorunit and conversion of units

  1 kilowatt-hour is equal to:

  Options

  • Option A

    3.6×10³ J

  • Option B

    3.6×10⁵ J

  • Option C

    3.6×10⁶ J

  • Option D

    36×10⁶ J

  Check answerShow answer
  Open question & full solution →
• MCQmediumUnit dimension and errorunit and conversion of units

  For a damped oscillator, x = A e⁻ᵝᵗ cos(ωt). The dimensions of β/ω are:

  Options

  • Option A

    Dimensionless

  • Option B

    [T]

  • Option C

    [T⁻¹]

  • Option D

    [L]

  Check answerShow answer
  Open question & full solution →
• MCQeasyUnit dimension and errorunit and conversion of units

  In a new system, unit mass = 4 kg, unit length = 2 m and unit time = 5 s. A force of 100 N has numerical value:

  Options

  • Option A

    31.25

  • Option B

    312.5

  • Option C

    125

  • Option D

    25

  Check answerShow answer
  Open question & full solution →
• MCQeasyUnit dimension and errorunit and conversion of units

  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

  Check answerShow answer

  JEE Mains11 April 2023Shift 1Morning Shift

  Open question & full solution →
• MCQeasyUnit dimension and errorunit and conversion of units

  In a system where unit energy = 100 J, unit length = 2 m and unit time = 10 s, the corresponding unit of mass is:

  Options

  • Option A

    250 kg

  • Option B

    2500 kg

  • Option C

    25 kg

  • Option D

    1000 kg

  Check answerShow answer
  Open question & full solution →
• MCQeasyUnit dimension and errorunit and conversion of units

  In a new system, unit mass = 4 kg, unit length = 2 m and unit time = 5 s. A force of 100 N has numerical value:

  Options

  • Option A

    31.25

  • Option B

    312.5

  • Option C

    125

  • Option D

    25

  Check answerShow answer
  Open question & full solution →
• MatchmediumUnit dimension and errorunit and conversion of units

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

  List 1

  1. Spring constant

  2. Permittivity

  3. Activity

  4. Latent heat

  List 2

  1. F m⁻¹

  2. N m⁻¹

  3. J kg⁻¹

  4. Bq

  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

  Check answerShow answer

  JEE MainsJEE Advanced

  Open question & full solution →