Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Units and Measurements question

2024 · 8 Apr · Shift 1 · Q74
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Units and Measurements
  5. /2024 · 8 Apr · Shift 1 · Q74

Units and Measurements question

2024 · 8 Apr · Shift 1 · Q74

JEE MainPhysicsUnits and MeasurementsMCQ+4 / −1
The diameter of a sphere is measured using a vernier caliper whose 9 divisions of main scale are equal to 10 divisions of vernier scale. The shortest division on the main scale is equal to 1 mm1 \mathrm{~mm}1 mm. The main scale reading is 2 cm2 \mathrm{~cm}2 cm and second division of vernier scale coincides with a division on main scale. If mass of the sphere is 8.635 g\mathrm{g}g, the density of the sphere is:
  1. A
    2.2 g/cm32.2 \mathrm{~g} / \mathrm{cm}^32.2 g/cm3
  2. B
    2.0 g/cm32.0 \mathrm{~g} / \mathrm{cm}^32.0 g/cm3
  3. C
    1.7 g/cm31.7 \mathrm{~g} / \mathrm{cm}^31.7 g/cm3
  4. D
    2.5 g/cm32.5 \mathrm{~g} / \mathrm{cm}^32.5 g/cm3
PreviousNext

More from Units and Measurements

  • If ϵo​ is the permittivity of free space and E is the electric field, then ϵo​E2 has the dimensions :2024 · MCQ
  • There are 100 divisions on the circular scale of a screw gauge of pitch 1 mm. With no measuring quantity in between the jaws, the zero of the circular scale lies 5 divisions below the reference line. The diameter of a wire is…2024 · MCQ
  • Least count of a vernier caliper is 20 N1​ cm. The value of one division on the main scale is 1 mm. Then the number of divisions of main scale that coincide with N divisions of vernier…2024 · MCQ
  • The dimensional formula of latent heat is :2024 · MCQ
  • One main scale division of a vernier caliper is equal to m units. If nth  division of main scale coincides with (n+1)th  division of vernier scale, the least count of the vernier caliper is :2024 · MCQ
  • The de-Broglie wavelength associated with a particle of mass m and energy E is h/2mE​. The dimensional formula for Planck's constant is :2024 · MCQ
  • Given below are two statements : Statement (I) : Planck's constant and angular momentum have same dimensions. Statement (II) : Linear momentum and moment of force have same dimensions. In the light of the above statements, choose the…2024 · MCQ
  • Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In Vernier calliper if positive zero error exists, then while taking measurements, the reading taken will be more…2024 · MCQ