1
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Two moles a monoatomic gas is mixed with six moles of a diatomic gas. The molar specific heat of the mixture at constant volume is :
A
$\frac{3}{2} \mathrm{R}$
B
$\frac{7}{4} \mathrm{R}$
C
$\frac{5}{2} \mathrm{R}$
D
$\frac{9}{4} \mathrm{R}$
2
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The dimensional formula of angular impulse is :
A
$\left[\mathrm{M} \mathrm{L}^2 \mathrm{~T}^{-2}\right]$
B
$\left[\mathrm{M} \mathrm{L}^{-2} \mathrm{~T}^{-1}\right]$
C
$\left[\mathrm{M} \mathrm{L}^2 \mathrm{~T}^{-1}\right]$
D
$\left[\mathrm{M} \mathrm{L} \mathrm{T}^{-1}\right]$
3
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
A monochromatic light of wavelength $6000 ~\mathring{A}$ is incident on the single slit of width $0.01 \mathrm{~mm}$. If the diffraction pattern is formed at the focus of the convex lens of focal length $20 \mathrm{~cm}$, the linear width of the central maximum is :
A
$12 \mathrm{~mm}$
B
$24 \mathrm{~mm}$
C
$60 \mathrm{~mm}$
D
$120 \mathrm{~mm}$
4
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
A ball of mass $0.5 \mathrm{~kg}$ is attached to a string of length $50 \mathrm{~cm}$. The ball is rotated on a horizontal circular path about its vertical axis. The maximum tension that the string can bear is $400 \mathrm{~N}$. The maximum possible value of angular velocity of the ball in $\mathrm{rad} / \mathrm{s}$ is, :
A
1600
B
20
C
40
D
1000
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