Measurement
The density of a material in the shape of a cube is determined
The density of a material in the shape of a cube is determined by measuring three sides of the cube and its mass. If the relative errors in measuring the mass and length are respectively 1.5% and 1%, the maximum error in determining the density is:
- 3.5%
- 4.5%
- 6%
- 2.5%
Which represents the correct dimensions of the coefficient of viscosity
Which one of the following represents the correct dimensions of the coefficient of viscosity?
- ML-2T-2
- MLT-1
- ML-1T-1
- ML-1T-2
Dimensions of 1/μoεo, where symbols have their usual meaning
Dimensions of 1/μoεo, where symbols have their usual meaning, are
- [L2T–2]
- [LT–1]
- [L–2T2]
- [L–1T]
Which units denotes the dimensions ML^2/Q^2
Which of the following units denotes the dimensions ML2/Q2, where Q denotes the electric charge?
- weber (Wb)
- H/m2
- Wb/m2
- henry (H)
The physical quantities not having same dimensions are
The physical quantities not having same dimensions are
- torque and work
- stress and Young's modulus
- speed and (μ0ε0)–1/2
- momentum and Planck's constant
Identify the pair whose dimensions are equal
Identify the pair whose dimensions are equal
- force and work
- torque and work
- stress and energy
- force and stress
The dimension of magnetic field in M, L, T and C
The dimension of magnetic field in M, L, T and C (coulomb) is given as
- MT–1C–1
- MLT–1C–1
- MT2C–2
- MT–2C–1
The velocity of a particle depends upon t as V = A + Bt + ct^2
The velocity of a particle depends upon t as V = A + Bt + ct2. If velocity is in m/s, the unit of A will be
- m/s
- m/s2
- m.s
- m2/s
Which of the following pairs does not have the same dimensions
Which of the following pairs does not have the same dimensions?
- frequency and angular frequency
- angular velocity and velocity gradient
- velocity gradient and angular frequency
- angular frequency and potential energy gradient