A spherical body of mass m and radius r is allowed to fall in a medium of viscosity . The time in which the velocity of the body increases from zero to 0.63 times the terminal velocity is called time constant . Dimensionally can be represented by
(1)
(b)
(c)
(4) None of the above
The frequency of vibration f of a mass m suspended from a spring of spring constant K is given by a relation of this type ; where C is a dimensionless quantity. The value of x and y are
1.
2.
3.
4.
The quantities A and B are related by the relation, m = A/B, where m is the linear density and A is the force. The dimensions of B are of
1. Pressure
2. Work
3. Latent heat
4. None of the above
The velocity of water waves v may depend upon their wavelength , the density of water and the acceleration due to gravity g. The method of dimensions gives the relation between these quantities as:
1.
2.
3.
4.
The dimensions of resistivity in terms of \(M\), \(L\), \(T\), and \(Q\) where \(Q\) stands for the dimensions of charge, will be:
1. \(\left[M L^3 T^{-1} Q^{-2}\right]\)
2. \(\left[M L^3 T^{-2} Q^{-1}\right]\)
3. \(\left[M L^2 T^{-1} Q^{-1}\right]\)
4. \(\left[M L T^{-1} Q^{-1}\right]\)
The dimensions of Farad are , where Q represents electric charge [This question includes concepts from 12th syllabus]
(1)
(2)
(3)
(4)
The equation of a wave is given by where is the angular velocity, x is length and is the linear velocity. The dimension of k is
(1) LT
(2) T
(3)
(4) T2
Dimensional formula of capacitance is
(1)
(2)
(3)
(4)
Dimensional formula of heat energy is
(1)
(2)
(3)
(4) None of these
If C and L denote capacitance and inductance respectively, then the dimensions of LC are
(1)
(2)
(3)
(4)