31 Year NEET Previous Year Questions: Units & Measurement - NEET
40 Questions MCQ Test Physics Class 11 - 31 Year NEET Previous Year Questions: Units & Measurement
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The dimensional formula for angular momentum is [1988]
If C and R denote capacitance and resistance, the dimensional formula of CR is [1988]
The dimensional formula of torque is [1989]
Dimensional formula of self inductance is [1989]
is the rate of change of current.
Of the following quantities, which one has dimension different from the remaining three? [1989]
If x = at + bt2, where x is the distance travelled by the body in kilometers while t is the time in seconds, then the units of b is [1989]
According to Newton, the viscous force acting between liquid layers of area A and velocity gradient ΔV/ΔZ is given by
where η is constant called coefficient of viscosity. The dimensional formula of η is [1990]
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
The dimensional formula of pressure is [1990]
= ML–1T–2The dimension al formula for permeability µ is given by [1991]
A certain body weighs 22.42 gm and has a measured volume of 4.7 cc. The possible error in the measurement of mass and volume are 0.01 gm and 0.1 cc. Then maximum error in the den sity will be [1991]
=2 %P represents radiation pressure, crepresents speed of light and S represents radiation energy striking unit area per sec. The non zero integers x, y, z such that Px Sy cz is dimensionless are [1992]
= [M0L0T0]The time dependence of a physical quantity p is given by p = p0 exp (– αt2), where α is a constant and t is the time. The constant α [1993]
urpentine oil is flowing through a tube of length l and radius r. The pressure difference between the two ends of the tube is P. The viscosity of oil is given by 
where v is the velocity of oil at a distance a from the axis of the tube. The dimensions of η are
In a vernier calliper N divisions of vernier scale coincides with (N – 1) divisions of main scale (in which length of one division is 1 mm). The least count of the instrument should be[1994]
In a particular system, the unit of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalen t to [1994]
Which of the following is a dimensional constant? [1995]
The percentage errors in the measurement of mass and speed are 2% and 3% respectively.The error in kinetic energy obtained by measuring mass and speed will be [1995]
An equation is given as : 
where P = Pressure, V = Volume & θ = Absolute temperature. If a and b are constants, then dimensions of a will be [1996]
= Dimension of 
a = [M L5 T–2]The density of a cube is measured by measuring its mass and length of its sides. If the maximum error in the measurement of mass and length are 4% and 3% respectively, the maximum error in the measurement of den sity will be [1996]
Which of the following will have the dimensions of time [1996]
The force F on a sphere of radius a moving in a medium with velocity v is given by F = 6πηav.The dimensions of η are [1997]
= ML–1T–1The dimensional formula for magnetic flux is [1999]
Which one of the following groups have quantities that do not have the same dimensions? [2000]
The dimensions of Planck’s constant are same as [2001]
The unit of the Stefan-Boltzmann's constant is [2002]
The unit of permittivity of free space, εo is [2004]
The dimensions of universal gravitational constant are [1992, 2004]
The ratio of the dimension of Planck’s constant and that of the moment of inertia has the dimension of [2005]
The velocity v of a particle at time t is given by
where a, b and c are constant.The dimensions of a, b and c are respectively [2006]
= Dimension of v
Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of current I, would be [2007]
If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be: [2008]
Which two of the following five physical parameters have the same dimensions?
(A) Energy density [2008]
(B) Refractive index
(C) Dielectric constant
(D) Young’s modulus
(E) Magnetic field
If the dimensions of a physical quantity are given by Ma Lb Tc, then the physical quantity will be:
The dimension of 
where ε0 is permittivity of free space and E is electric field, is:[2010]
represents energy density i.e., energy per unit volume.
The dimensions of 
are [2011]
, so, dimensions are [LTT–1].The density of material in CGS system of units is 4g/cm3. In a system of units in which unit of length is 10 cm and unit of mass is 100 g, the value of density of material will be [2011M]
The dimensions of (μ0ε0)–1/2 are : [2012M]
: speed of lightIn an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively. Quantity P is calculated as follows 
error in P is [NEET 2013]
100%.The pair of quantities having same dimensions is [NEET Kar. 2013]
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Important Questions for 31 Year NEET Previous Year Questions: Units & Measurement
31 Year NEET Previous Year Questions: Units & Measurement MCQs with Answers
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