## If C and R denote capacitance and resistance respectively, then the dimensional formula of CR is…

Q: If C and R denote capacitance and resistance respectively, then the dimensional formula of CR is

(a) [M0L0T]

(b) [M0L0T0]

(c) [M0L0T-1]

(d) Not expressible in terms of [MLT]

Ans: (a)

## Dimensional formula of self-inductance is …

Q: Dimensional formula of self-inductance is

(a) [MLT–2A–2]

(b) [ML2T–1A–2]

(c) [ML2T–2A–2]

(d) [ML2T–2A–1]

Ans:(c)

## If x = at + bt^2, where x is the distance travelled by the body in kilometer…

Q: If x = at + bt2, where x is the distance travelled by the body in kilometer while t is the time in second, then the unit of b is

(a) km/s

(b) km-s

(c) km/s2

(d) km-s2

Ans: (c)

## According to Newton, the viscous force acting between liquid layers of area A and velocity gradient…

Q: According to Newton, the viscous force acting between liquid layers of area A and velocity gradient Δv/Δz is given by F = –ηA dv/dz, where η is constant called coefficient of viscosity. The dimensional formula of η is

(a) [ML–2T–2]

(b) [M0L0T0]

(c) [ML2T–2]

(d) [ML–1T–1]

Ans: (d)

## The frequency of vibration f of a mass m suspended from a spring of spring constant k is given by..

Q: The frequency of vibration f of a mass m suspended from a spring of spring constant k is given by a relation of the type f = C mx ky, where C is a dimensionless constant. The values of x and y are

(a) x = 1/2, y = 1/2

(b) x = -1/2, y = -1/2

(c) x = 1/2, y = -1/2

(d) x = -1/2, y = 1/2

Ans: (d)