Units & Measurements PYQs - Last 10 Years
WB JEE / Physics / Mechanics / 17 recent questions
PhysicsMechanics2017-2026
Practice 17 WB JEE Physics questions from Units & Measurements. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
17
PYQs on Page
Physics / Mechanics
2017-2026
Year Range
Based on indexed question metadata
11
Last 5 Years
2022-2026
17
Last 10 Years
2017-2026
Recent Year Trend
2021
2022
2023
2024
2025
2026Latest year
20213 max PYQs/year2026
Question Types
17PYQs
MCQ94.1%
MCQM5.9%
Difficulty Mix
#1 Unknown17
11 in last 5 years17 in last 10 years
Last 10 Years Units & Measurements Questions
Showing 17 of 17 filtered questions.
1Units And Measurements
The velocity $v$ of a particle at time $t$ is given by $v=a t+\frac{b}{t+c}$, where $a, b$ and $c$ are constants. The dimension of $a, b$ and $c$ are, respectively
MCQ+1 / -0.252026
2Units And Measurements
Density and volume of a body are given as $(20 \pm 4) \mathrm{gm} / \mathrm{cm}^3$ and $(10 \pm 1) \mathrm{cm}^3$ respectively. The absolute error in measurement of mass is
MCQ+1 / -0.252026
3Units And Measurements
If the dimensions of length are expressed as $G^x C^y h^z$, where $G, C$ and $h$ are the universal gravitational constant, speed of light and Planck's constant respectively, then
MCQM+2 / -02025
4Units And Measurements
The resistance $\mathrm{R}=\frac{\mathrm{V}}{\mathrm{I}}$ where $\mathrm{V}=(25 \pm 0.4)$ Volt and $\mathrm{I}=(200 \pm 3)$ Ampere. The percentage error in ' $R$ ' is
MCQ+1 / -0.252025
5Units And Measurements
A quantity $X$ is given by $\varepsilon_0 L \frac{\Delta V}{\Delta t}$, where $\varepsilon_0$ is the permittivity of free space, $L$ is the length, $\Delta V$ is a potential difference and $\Delta t$ is a time interval. The dimension of $X$...
MCQ+1 / -0.252025
6Units And Measurements
The Power \((\mathrm{P})\) radiated from an accelerated charged particle is given by \(\mathrm{P} \propto \frac{(q \mathrm{a})^{\mathrm{m}}}{\mathrm{c}^{\mathrm{n}}}\) where \(\mathrm{q}\) is the charge, \(\mathrm{a}\) is the acceleration o...
MCQ+1 / -0.252024
7Units And Measurements
Which of the following quantity has the dimension of length ?
(h is Planck's constant, m is the mass of electron and c is the velocity of light)
(h is Planck's constant, m is the mass of electron and c is the velocity of light)
MCQ+1 / -0.252024
8Units And Measurements
A modified gravitational potential is given by \(\mathrm{V}=-\frac{\mathrm{GM}}{\mathrm{r}}+\frac{\mathrm{A}}{\mathrm{r}^{2}}\). If the constant A is expressed in terms of gravitational constant (G), mass (M) and velocity of light (c), then...
MCQ+2 / -0.52023
9Units And Measurements
In an experiment, the length of an object is measured to be 6.50 cm. This measured value can be written as 0.0650 m. The number of significant figures on 0.0650 m is
MCQ+1 / -0.252023
10Units And Measurements
The Entropy (S) of a black hole can be written as \(S = \beta {k_B}A\), where kB is the Boltzmann constant and A is the area of the black hole. The \(\beta\) has dimension of
MCQ+1 / -0.252022
11Units And Measurements
Given : The percentage error in the measurements of A, B, C and D are respectively, 4%, 2%, 3% and 1%. The relative error in \(Z = {{{A^4}{B^{{1 \over 3}}}} \over {C{D^{{3 \over 2}}}}}\) is
MCQ+1 / -0.252022
12Units And Measurements
From dimensional analysis, the Rydberg constant can be expressed in terms of electric charge (e), mass (m) and Planck constant (h) as [consider \({1 \over {4\pi {\varepsilon _0}}} \equiv 1\) unit]
MCQ+1 / -0.252021
13Units And Measurements
The frequency v of the radiation emitted by an atom when an electron jumps from one orbit to another is given by v = k\(\delta\)E, where k is a constant and \(\delta\)E is the change in energy level due to the transition. Then, dimension ...
MCQ+1 / -0.252020
14Units And Measurements
The correct dimensional formula for impulse is given by
MCQ+1 / -0.252019
15Units And Measurements
The density of the material of a cube can be estimated by measuring its mass and the length of one of its sides. If the maximum error in the measurement of mass and length are 0.3% and 0.2% respectively, the maximum error in the estimation ...
MCQ+1 / -0.252019
16Units And Measurements
A spherical liquid drop is placed on a horizontal plane. A small distance causes the volume of the drop to oscillate. The time period of oscillation (T) of the liquid drop depends on radius (r) of the drop, density (\(\rho\)) and surface t...
MCQ+1 / -0.252018
17Units And Measurements
The dimension of the universal constant of gravitation, G is
MCQ+1 / -0.252017