The Dimensions Of Permittivity (ε0) Of Vacuum Are

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The dimensions of permittivity (ε0) of vacuum are


Correct option is


According to Coulomb’s law of electrostatics, force F between two charges q1 and q2 a distance r apart in vacuum, is given by  






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The volume V of water passing any point of a uniform tube during tseconds is related to the cross-sectional area A of the tube and velocity uof water by the relation  


Which one of the following will be true?


Which one of the following relations is dimensionally consistent where h is height to which a liquid of density ρ rises in a capillary tube of radius, rTis the surface tension of the liquid, θ the angle of contact and g the acceleration due to gravity?



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Where p is the number of segments of the vibrating string and m is a constant of the string. What are the dimensions of m?


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When a wave traverses a medium, the displacement of a particle located atx at time t is given by 


Where ab and c are constants of the wave. Which of the following are dimensionless quantities?



The Vander Waal equation for n moles of a real gas is 


Where P is the pressure, V is the volume, T is the absolute temperature, R is the molar gas constant and ab are Vander Waal constants. The dimensions of a are the same as those of


In velocity (V), acceleration (A) and force (F) are taken as fundamental quantities instead of mass (M), length (L) and time (T), the dimensions of Young’s modulus would be