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Units and Measurements

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2026
Match the LIST-I with LIST-II

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JEE Main Physics Medium
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Q JEE MAIN 2026
A ball of radius $r$ and density $\rho$ dropped through a viscous liquid of density $\sigma$ and viscosity $\eta$ attains its terminal velocity at time...
JEE Main Physics Medium
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Q JEE MAIN 2026
Match the LIST-I with LIST-II
JEE Main Physics Medium
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Q JEE MAIN 2026
If $\epsilon, E$ and $t$ represent the free space permittivity, electric field and time respectively, then the unit of $\frac{\epsilon E}{t}$ will be :
JEE Main Physics Medium
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Q JEE MAIN 2020
If momentum (P), area (A) and time (T) are taken to be the fundamental quantities then the dimensional formula for energy is
JEE Main Physics Easy
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Q JEE MAIN 2019
Expression for time in terms of G(universal gravitational constant), h (Planck constant) and c (speed of light) is proportional to:
JEE Main Physics Medium
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Q JEE-MAIN 2019
The least count of the main scale of a screw gauge is 1 mm. The minimum number of divisions on its circular scale required to...
JEE Main Physics Easy
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Q JEE MAIN 2019
The force of interaction between two atoms is given by $\mathrm{F}=\alpha \beta \exp \left(-\frac{\mathrm{x}^2}{\alpha \mathrm{kt}}\right)$; where x is the distance, k is the Boltzmann constant...
JEE Main Physics Easy
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Q JEE MAIN 2019
In the formula $X=5 Y Z^2, X$ and $Z$ have dimensions of capacitance and magnetic field, respectively. What are the dimensions of Y in SI...
JEE Main Physics Medium
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Q JEE MAIN 2020
The dimension of stopping potential $V_0$ in photoelectric effect in units of Planck's constant ' $h$ ', speed of light ' $c$ ' and Gravitational...
JEE Main Physics Medium
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