1
JEE Main 2025 (Online) 3rd April Evening Shift
MCQ (Single Correct Answer)
+4
-1

$$ \text { Match the LIST-I with LIST-II } $$

LIST-I

LIST-II
A. $$
\text { Boltzmann constant }
$$
I $$
\mathrm{ML}^2 \mathrm{~T}^{-1}
$$
B $$
\text { Coefficient of viscosity }
$$
II $$
\mathrm{MLT}^{-3} \mathrm{~K}^{-1}
$$
C $$
\text { Planck's constant }
$$
III $$
\mathrm{ML}^2 \mathrm{~T}^{-2} \mathrm{~K}^{-1}
$$
D $$
\text { Thermal conductivity }
$$
IV $$
\mathrm{ML}^{-1} \mathrm{~T}^{-1}
$$
Choose the correct answer from the options given below:
A
A - III, B - IV, C - I, D - II
B
A - III, B - IV, C - II, D - I
C
A - III, B - II, C - I, D - IV
D
A - II, B - III, C - IV, D - I
2
JEE Main 2025 (Online) 3rd April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Pressure of an ideal gas, contained in a closed vessel, is increased by $0.4 \%$ when heated by $1^{\circ} \mathrm{C}$. Its initial temperature must be:
A
2500 K
B
$25^{\circ} \mathrm{C}$
C
$250^{\circ} \mathrm{C}$
D
250 K
3
JEE Main 2025 (Online) 3rd April Evening Shift
MCQ (Single Correct Answer)
+4
-1

A solid steel ball of diameter 3.6 mm acquired terminal velocity $2.45 \times 10^{-2} \mathrm{~m} / \mathrm{s}$ while falling under gravity through an oil of density $925 \mathrm{~kg} \mathrm{~m}^{-3}$. Take density of steel as $7825 \mathrm{~kg} \mathrm{~m}^{-3}$ and g as $9.8 \mathrm{~m} / \mathrm{s}^2$. The viscosity of the oil in SI unit is

A
2.18
B
1.68
C
2.38
D
1.99
4
JEE Main 2025 (Online) 3rd April Evening Shift
MCQ (Single Correct Answer)
+4
-1

A particle is projected with velocity $u$ so that its horizontal range is three times the maximum height attained by it. The horizontal range of the projectile is given as $\frac{n u^2}{25 g}$, where value of $n$ is: (Given, ' $g$ ' is the acceleration due to gravity.)

A
6
B
12
C
18
D
24
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