Units & Measurements PYQs - Last 10 Years
JEE Main / Physics / Mechanics / 210 recent questions
PhysicsMechanics2017-2026
Practice 210 JEE Main Physics questions from Units & Measurements. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
210
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Physics / Mechanics
2017-2026
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137
Last 5 Years
2022-2026
210
Last 10 Years
2017-2026
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210PYQs
MCQ91%
INTEGER9%
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#1 Easy138
#2 Medium71
#3 Hard1
137 in last 5 years210 in last 10 years
Last 10 Years Units & Measurements Questions
Showing 10 of 210 filtered questions.
1Units And Measurements
In the formula X = 5YZ2
, X and Z have dimensions of capacitance and magnetic field, respectively. What are
the dimensions of Y in SI units?
, X and Z have dimensions of capacitance and magnetic field, respectively. What are
the dimensions of Y in SI units?
MCQ+4 / -12019
2Units And Measurements
The relative uncertainly in the period of a satellite orbiting around the earth is 10-2. If the relative uncertainty in the radius of the orbit is negligible, the relative uncertainty in the mass of the earth is :
MCQ+4 / -12018
3Units And Measurements
The percentage errors in quantities P, Q, R and S are 0.5%, 1%, 3% and 1.5% respectively in the measurement of a physical quantity A = \({{{P^3}{Q^2}} \over {\sqrt R S}}.\)
The maximum percentage error in the value of A will be :
The maximum percentage error in the value of A will be :
MCQ+4 / -12018
4Units And Measurements
The relative error in the determination of the surface area of sphere is \(\alpha\). Then the relative error in the determination of its volume is :
MCQ+4 / -12018
5Units And Measurements
In a screw gauge, \(5\) complete rotations of the screw cause it to move a linear distance of \(0.25\) \(cm.\) There are \(100\) circular scale divisions. The thickness of a wire measured by this screw gauge gives a reading of \(4\) main sc...
MCQ+4 / -12018
6Units And Measurements
The characteristic distance at which quantum gravitational effects are significant, the Planck length, can be determined from a suitable combination of the fundamental physical constants G, h and c. Which of the following correctly gives th...
MCQ+4 / -12018
7Units And Measurements
The density of a material in the shape of a cube is determined by measuring three sides of the cube and its
mass. If the relative errors in measuring the mass and length are respectively 1.5% and 1%, the maximum
error in determining the den...
mass. If the relative errors in measuring the mass and length are respectively 1.5% and 1%, the maximum
error in determining the den...
MCQ+4 / -12018
8Units And Measurements
A physical quantity P is described by the relation
P = a\(^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}\) b2 c3 d\(-\)4
If the relative errors in the measurement of a, b, c and d respe...
P = a\(^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}\) b2 c3 d\(-\)4
If the relative errors in the measurement of a, b, c and d respe...
MCQ+4 / -12017
9Units And Measurements
Time (T), velocity (C) and angular momentum (h) are chosen as fundamentalquantities instead of mass, length and time. In terms of these, the dimensions of mass would be :
MCQ+4 / -12017
10Units And Measurements
The following observations were taken for determining surface tension T of water by capillary method:
diameter of capillary, D = 1.25 \(\times\) 10-2 m
rise of water, h = 1.45 \(\times\) 10-2m
Using g = 9.80 m/s2 and the simplified relation...
diameter of capillary, D = 1.25 \(\times\) 10-2 m
rise of water, h = 1.45 \(\times\) 10-2m
Using g = 9.80 m/s2 and the simplified relation...
MCQ+4 / -12017