Skip to main content

Match List - I with List - II : List-I List- II (a) h (Planck's constant) (i) [ MLT^-1] (b) E (kinetic energy) ( ii) [ ML^2 T^-1] (c) V (electric…

JEE Main 2021 — Physics Mechanics

2021mcqeasy

Match List - I with List - II :

List−I\mathrm{List}-IList−IList−II\mathrm{List}-\mathrm{II}List−II
(a)(a)(a)hhh (Planck's constant)(i)(i)(i)[MLT−1][{\mathrm{MLT}}^{-1}][MLT−1]
(b)(b)(b)EEE (kinetic energy)(ii)(\mathrm{ii})(ii)[ML2T−1][{\mathrm{ML}}^{2}{T}^{-1}][ML2T−1]
(c)(c)(c)VVV (electric potential)(iii)(\mathrm{iii})(iii)[ML2T−2][{\mathrm{ML}}^{2}{T}^{-2}][ML2T−2]
(d)(d)(d)PPP (linear momentum)(iv)(\mathrm{iv})(iv)[ML2I−1T−3][{\mathrm{ML}}^{2}{I}^{-1}{T}^{-3}][ML2I−1T−3]
Choose the correct answer from the options given below:
Official previous-year question

Held on 25 Feb 2021 · Verified 6 Jul 2026.

Options

  1. A

    (a)→(ii),(b)→(iii),(c)→(iv),(d)→(i)(a)\rightarrow (\mathrm{ii}),(b)\rightarrow (\mathrm{iii}),(c)\rightarrow (\mathrm{iv}),(d)\rightarrow (i)(a)→(ii),(b)→(iii),(c)→(iv),(d)→(i)

  2. B

    (a)→(i),(b)→(ii),(c)→(iv),(d)→(iii)(a)\rightarrow (i),(b)\rightarrow (\mathrm{ii}),(c)\rightarrow (\mathrm{iv}),(d)\rightarrow (\mathrm{iii})(a)→(i),(b)→(ii),(c)→(iv),(d)→(iii)

  3. C

    (a)→(iii),(b)→(ii),(c)→(iv),(d)→(i)(a)\rightarrow (\mathrm{iii}),(b)\rightarrow (\mathrm{ii}),(c)\rightarrow (\mathrm{iv}),(d)\rightarrow (i)(a)→(iii),(b)→(ii),(c)→(iv),(d)→(i)

  4. D

    (a)→(iii),(b)→(iv),(c)→(ii),(d)→(i)(a)\rightarrow (\mathrm{iii}),(b)\rightarrow (\mathrm{iv}),(c)\rightarrow (\mathrm{ii}),(d)\rightarrow (i)(a)→(iii),(b)→(iv),(c)→(ii),(d)→(i)

Did you get this right?

Sign in to track your attempts and accuracy.

Your note

Sign in to keep a private note on this question. Nothing you write is ever public.

JEE Main Mechanics in other years

Mechanics 2026Mechanics 2025Mechanics 2024Mechanics 2023Mechanics 2022Mechanics 2020Mechanics 2019Mechanics 2018Mechanics 2017Mechanics 2016Mechanics 2015Mechanics 2014

More JEE Main Mechanics questions

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 :

2026easy

When a part of a straight capillary tube is placed vertically in a liquid, the liquid raises upto certain height $h$. If the inner radius of the capillary tube, density of the liquid and surface tension of the liquid decrease by $1 \%$ each, then the height of the liquid in the tube will change by $\%$.

2026medium

The velocity of a particle is given as $\vec{v} = -x\hat{i} + 2y\hat{j} - z\hat{k}$ m/s. The magnitude of acceleration at point $(1, 2, 4)$ is _______ m/s$^2$.

2026hard

Suppose there is a uniform circular disc of mass $M \mathrm{~kg}$ and radius $r \mathrm{~m}$ shown in figure. The shaded regions are cut out from the disc. The moment of inertia of the remainder about the axis $A$ of the disc is given by $\frac{x}{256} M r^{2}$. The value of $x$ is $\_\_\_\_$. ![JEE Main 2026 Physics, Rotational Motion — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Physics/images/Rotational_Motion/6983c19b8bfdbb24356396d6/question_1__q_6983c19b8bfdbb24356396d6__cdn-question-pool.getmarks.app__23S2_q_48_1__7376098484_final_ppt_sync.png)

2026hard

A soap bubble of surface tension $0.04 \mathrm{~N} / \mathrm{m}$ is blown to a diameter of 7 cm. If $(15000-x) \mu \mathrm{J}$ of work is done in blowing it further to make its diameter 14 cm, then the value of $x$ is $\_\_\_\_$. ($\pi=22 / 7$)

2026medium
View all Mechanics questions

Other Physics topics for JEE Main

Electromagnetism

1703 questions

Modern Physics

652 questions

Optics

489 questions

Thermodynamics

487 questions

Waves & Oscillations

340 questions

Keep practicing Mechanics

Work through every JEE Main Mechanics PYQ, year by year.

Browse all Physics topics