1
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A body of mass $$(5 \pm 0.5) ~\mathrm{kg}$$ is moving with a velocity of $$(20 \pm 0.4) ~\mathrm{m} / \mathrm{s}$$. Its kinetic energy will be

A
$$(1000 \pm 140) ~\mathrm{J}$$
B
$$(500 \pm 0.14) ~\mathrm{J}$$
C
$$(1000 \pm 0.14) ~\mathrm{J}$$
D
$$(500 \pm 140) ~\mathrm{J}$$
2
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I LIST II
A. Spring constant I. $$\mathrm{[T^{-1}]}$$
B. Angular speed II. $$\mathrm{[MT^{-2}]}$$
C. Angular momentum III. $$\mathrm{[ML^2]}$$
D. Moment of inertia IV. $$\mathrm{[ML^2T^{-1}]}$$

Choose the correct answer from the options given below:

A
A-IV, B-I, C-III, D-II
B
A-II, B-III, C-I, D-IV
C
A-II, B-I, C-IV, D-III
D
A-I, B-III, C-II, D-IV
3
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

If force (F), velocity (V) and time (T) are considered as fundamental physical quantity, then dimensional formula of density will be :

A
$$\mathrm{FV}^{-2} \mathrm{~T}^{2}$$
B
$$\mathrm{FV}^{4} \mathrm{~T}^{-6}$$
C
$$\mathrm{F}^{2} \mathrm{~V}^{-2} \mathrm{~T}^{6}$$
D
$$\mathrm{FV}^{-4} \mathrm{~T}^{-2}$$
4
JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements :

Statements I : Astronomical unit (Au), Parsec (Pc) and Light year (ly) are units for measuring astronomical distances.

Statements II : $$\mathrm{Au} < \mathrm{Parsec} (\mathrm{Pc}) < \mathrm{ly}$$

In the light of the above statements, choose the most appropriate answer from the options given below:

A
Both Statements I and Statements II are incorrect.
B
Both Statements I and Statements II are correct,
C
Statements I is incorrect but Statements II is correct.
D
Statements I is correct but Statements II is incorrect.
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