1
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.
2
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In an experiment with vernier callipers of least count $$0.1 \mathrm{~mm}$$, when two jaws are joined together the zero of vernier scale lies right to the zero of the main scale and 6th division of vernier scale coincides with the main scale division. While measuring the diameter of a spherical bob, the zero of vernier scale lies in between $$3.2 \mathrm{~cm}$$ and $$3.3 \mathrm{~cm}$$ marks, and 4th division of vernier scale coincides with the main scale division. The diameter of bob is measured as

A
$$3 .18 \mathrm{~cm}$$
B
$$3.22 \mathrm{~cm}$$
C
$$3.26 \mathrm{~cm}$$
D
$$3.25 \mathrm{~cm}$$
3
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A physical quantity P is given as

$$P = {{{a^2}{b^3}} \over {c\sqrt d }}$$

The percentage error in the measurement of a, b, c and d are 1%, 2%, 3% and 4% respectively. The percentage error in the measurement of quantity P will be

A
12%
B
13%
C
16%
D
14%
4
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I LIST II
A. Torque I. $$\mathrm{ML^{-2}T^{-2}}$$
B. Stress II. $$\mathrm{ML^2T^{-2}}$$
C. Pressure gradient III. $$\mathrm{ML^{-1}T^{-1}}$$
D. Coefficient of viscosity IV. $$\mathrm{ML^{-1}T^{-2}}$$

Choose the correct answer from the options given below:

A
A-II, B-I, C-IV, D-III
B
A-II, B-IV, C-I, D-III
C
A-IV, B-II, C-III, D-I
D
A-III, B-IV, C-I, D-II
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