Significant Figures

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Unspecified year 26 questions

  1. What is the correct number of significant figures in 0.0003026?
  2. Number of significant figures in expression $\frac{4.327g}{{2.51cm}^{3}}$ is
  3. The respective number of significant figures for the number 23.023, 0.0003 and $2.1 \times 10^{-3}$ are respectively.
  4. The value of resistance is $10.845\Omega$ and the value of current is 3.23A. The potential difference is 35.02935 volt. Its value in significant number would be
  5. Which of the following statements is/are correct? I. 345.726 has six significant figures. II. 0.004289 has seven singificant figures. III. 125000 has three significant figures. IV. 9.0042 has five significant figures.
  6. The number of significant figures in a number " 1700.00200 " is
  7. If $L = 2.331cm$, $B = 2.1cm$, then $L + B$ =
  8. The length of one rod $\ell_{1} = 3.323cm$ and the other is $\ell_{2} = 3.321cm$. Both rods were measured with one measuring instrument with least count 0.001cm Then $(\ell_{1} - \ell_{2})$ is
  9. The area of a square is $5.29cm^{2}$. The area of 7 such squares taking into account the significant figures is:
  10. The dimensions of pressure is equal to
  11. The dimensional formula of angular velocity is
  12. The physical quantity that has no dimensions is
  13. Which is dimensionless?
  14. Dimensions of specific heat are
  15. The dimensions of torque are
  16. The dimensional formula for magnetic flux is
  17. The dimensions of magnetic field in M, L, T and C (coulomb) is given as
  18. The dimensions of coefficient of self inductance are
  19. Which of the following is not a dimensionless quantity?
  20. The dimensions of mobility are
  21. Which one of the following represents the correct dimensions of the coefficient of viscosity?
  22. The ratio of the dimensions of Planck's constant and that of the moment of inertia is the dimensions of
  23. Dimensions of 'resistance' are same as (where h is Planck's constant and e is charge)
  24. If L denotes the inductance of an inductor through which a current i is flowing, the dimensions of $Li^{2}$ are
  25. Which one of the following represents the correct dimensions of the gravitational constant?
  26. If electronic charge e, electron mass m, speed of light in vacuum c and Planck's constant h are taken as fundamental quantities, the permeability of vacuum $\mu_{0}$ can be expressed in units of