Units and Measurement questions
875 published questions with worked solutions.
- [ML^2T^ -3 A^ -2 ] is the dimensional formula of
- The dimensions of 12 E^2 are the same as
- The wavelength associated with a moving particle depends upon power p of its mass m, qth power of its velocity v and rth power of...
- Linear momentum and angular momentum have the same dimensions in a system where
- The unit of momentum is
- The dimensions of emf in MKS is
- If the acceleration due to gravity is 10 ,ms^ -2 and the units of length and time are changed in kilometre and hour respectively,...
- The surface tension of mercury is 32 ,dyne ,cm^ -1 . Its value in SI units is
- If the units of M and L are increased three times, then the unit of energy will be increased by
- A physical quantity u is given by the relation u= B^2 2 _0 , here B= magnetic field strength, _0= magnetic permeability of...
- Electric displacement is given by D= E, here = electric permittivity, E= electric field strength. The dimensions of electric...
- If I is the moment of inertia and the angular velocity, what is the dimensional formula of rotational kinetic energy 12I ^2?
- The dimensions of R/L are [here, R= electric resistance, L= self-inductance]
- In the formula, a=3bc^2, a and c have dimensions of electric capacitance and magnetic induction respectively. What are the...
- The surface tension is T= F l , then the dimensions of surface tension are
- The maximum static friction on a body is F= N. Here, N= normal reaction force on the body, = coefficient of static friction. The...
- The fundamental unit, which has the same power in the dimensional formulae of surface tension and viscosity, is
- The dimensional formula of latent heat is
- If F=6 a^rv^c, where F= viscous force, = coefficient of viscosity, r= radius of spherical body, v= terminal velocity of the body....
- Which of the following pairs has the same dimensions?
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