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 · 6 Apr · Shift 2 · Q66
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 · 6 Apr · Shift 2 · Q66

Units and Measurements question

2024 · 6 Apr · Shift 2 · Q66

JEE MainPhysicsUnits and MeasurementsMCQ+4 / −1
In a vernier calliper, when both jaws touch each other, zero of the vernier scale shifts towards left and its 4th 4^{\text {th }}4th  division coincides exactly with a certain division on main scale. If 50 vernier scale divisions equal to 49 main scale divisions and zero error in the instrument is 0.04 mm0.04 \mathrm{~mm}0.04 mm then how many main scale divisions are there in 1 cm1 \mathrm{~cm}1 cm ?
  1. A
    5
  2. B
    40
  3. C
    10
  4. D
    20
PreviousNext

More from Units and Measurements

  • In finding out refractive index of glass slab the following observations were made through travelling microscope 50 vernier scale division =49 MSD;20 divisions on main scale in each cm For mark on paper  MSR =8.45 cm,VC=26…2024 · MCQ
  • In an expression a×10b :2024 · MCQ
  • 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 mm. The main scale reading is 2 cm…2024 · MCQ
  • 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