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

2021 · 27 Jul · Shift 2 · Q58
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Units and Measurements
  5. /2021 · 27 Jul · Shift 2 · Q58

Units and Measurements question

2021 · 27 Jul · Shift 2 · Q58

JEE MainPhysicsUnits and MeasurementsMCQ+4 / −1
A physical quantity 'y' is represented by the formula y=m2r−4gxl−32y = {m^2}{r^{ - 4}}{g^x}{l^{ - {3 \over 2}}}y=m2r−4gxl−23​ If the percentage errors found in y, m, r, l and g are 18, 1, 0.5, 4 and p respectively, then find the value of x and p.
  1. A
    5 and ±\pm± 2
  2. B
    4 and ±\pm± 3
  3. C
    163{{16} \over 3}316​ and ±32\pm {3 \over 2}±23​
  4. D
    8 and ±\pm± 2
PreviousNext

More from Units and Measurements

  • Match List - I with List - II. Choose the most appropriate answer from the option given below : Includes table2021 · MCQ
  • Which of the following equations is dimensionally incorrect? Where t = time, h = height, s = surface tension, θ= angle, ρ= density, a, r = radius, g = acceleration due to gravity, v = volume, p = pressure, W = work done, T =…2021 · MCQ
  • If velocity [V], time [T] and force [F] are chosen as the base quantities, the dimensions of the mass will be :2021 · MCQ
  • The diameter of a spherical bob is measured using a vernier callipers. 9 divisions of the main scale, in the vernier callipers, are equal to 10 divisions of vernier scale. One main scale division is 1 mm. The main scale reading is 10 mm…2021 · Numerical
  • The least count of the main scale of a vernier callipers is 1 mm. Its vernier scale is divided into 10 divisions and coincide with 9 divisions of the main scale. When jaws are touching each other, the 7th division of vernier scale…2020 · MCQ
  • If speed V, area A and force F are chosen as fundamental units, then the dimension of Young’s modulus will be2020 · MCQ
  • If momentum (P), area (A) and time (T) are taken to be the fundamental quantities then the dimensional formula for energy is2020 · MCQ
  • Using screw gauge of pitch 0.1 cm and 50 divisions on its circular scale, the thickness of an object is measured. It should correctly be recorded as2020 · MCQ