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Units & Measurement

Physics

Previous Years Questions

MCQ (Single Correct Answer)

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The percentage error in the measurement of g is : (Given that $$g = {{4{\pi ^2}L} \over {{T^2}}}$$, $$L = (10\, \pm \,0....
NEET 2022 Phase 2
The physical quantity that has the same dimensional formula as pressure is
NEET 2022 Phase 2
The area of a rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct signi...
NEET 2022
Plane angle and solid angle have
NEET 2022
The dimensions [MLT$$-$$2A$$-$$2] belong to the
NEET 2022
If force [F], acceleration [A] and time [T] are chosen as the fundamental physical quantities. Find the dimensions of en...
NEET 2021
A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading : 0 mmCircular...
NEET 2021
The E and G respectively denote energy and gravitational constant, then $${E \over G}$$ has the dimensions of :
NEET 2021
The energy required to break one bond in DNA is 10-20 J. This value in eV is nearly :
NEET 2020 Phase 1
Dimensions of stress are :
NEET 2020 Phase 1
Taking into account of the significant figures, what is the value of $$9.99 m - 0.0099m$$?
NEET 2020 Phase 1
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale.The pitch of the screw gauge i...
NEET 2020 Phase 1
In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2 %, ...
NEET 2019
A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale readin...
NEET 2018
A physical quantity of the dimensions of length that can be formed out of c, G and $${{{e^2}} \over {4\pi {\varepsilon _...
NEET 2017
Planck's constant (h), speed of light in vacuum (c) and Newton's gravitional constant (G) are three fundamental constant...
NEET 2016 Phase 2
If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface te...
AIPMT 2015 Cancelled Paper
If dimensions of critical velocity $$\upsilon $$c of a liquid flowing through a tube are expressed as $$\left[ {{\eta ^x...
AIPMT 2015
If force (F), velocity (V) and time (T) are taken as fundamental units, then dimensions of mass are
AIPMT 2014
If an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4% respectively. Quant...
NEET 2013
The pair of quantities having same dimensions is
NEET 2013 (Karnataka)
The dimensions of $${\left( {{\mu _0}{\varepsilon _0}} \right)^{ - 1/2}}$$ are
AIPMT 2012 Mains
The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionalit...
AIPMT 2012 Prelims
The density of a material in CGS system of units is 4 g cm$$-$$3. In a system of units in which unit of length is 10 cm ...
AIPMT 2011 Mains
The dimensions of $${\left( {{\mu _0}{\varepsilon _0}} \right)^{ - 1/2}}$$ are
AIPMT 2011 Prelims
The dimension of $${1 \over 2}{\varepsilon _0}{E^2}$$, where $${\varepsilon _0}$$ is permittivity of free space and E is...
AIPMT 2010 Prelims
A student measures the distance traversed in free fall of a body, initially at rest, in a given time. He uses this data ...
AIPMT 2010 Mains
If the dimensions of a physical quantity are given by MaLbTc, then the physical quantity will be...
AIPMT 2009
If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere...
AIPMT 2008
Which two of the following five physical parameters have the same dimensions ? 1.  Energy density 2. &nb...
AIPMT 2008
Dimensions of resistance in an electrical circuit, in terms of dimension of mass M, of length L, of time T and of curre...
AIPMT 2007
The velocity v of a particle at time t is given by v = at + $${b \over {t + c}}$$, where a, b and c are constants. The d...
AIPMT 2006
The ratio of the dimensions of Planck's constant and that of moment of inertia is the dimensions of
AIPMT 2005
The unit of permittyvity of free space, $${\varepsilon _0}$$, is
AIPMT 2004
The dimensions of universal gravitational constant are
AIPMT 2004
The dimensions of Planck's constant equals to that of
AIPMT 2001
Which pair do not have equal dimensions ?
AIPMT 2000

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