1
JEE Main 2024 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List - I with List - II.

List I (Number) List II (Significant figure)
(A) 1001 (I) 3
(B) 010.1 (II) 4
(C) 100.100 (III) 5
(D) 0.0010010 (IV) 6

Choose the correct answer from the options given below :
A
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
B
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
C
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
D
(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
2
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
10 divisions on the main scale of a Vernier calliper coincide with 11 divisions on the Vernier scale. If each division on the main scale is of 5 units, the least count of the instrument is :
A
$\frac{5}{11}$
B
$\frac{10}{11}$
C
$\frac{50}{11}$
D
$\frac{1}{2}$
3
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
$\left[\mathrm{M} \mathrm{L} \mathrm{T}^{-1}\right]$
4
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The radius $(\mathrm{r})$, length $(l)$ and resistance $(\mathrm{R})$ of a metal wire was measured in the laboratory as

$$ \begin{aligned} & \mathrm{r}=(0.35 \pm 0.05) ~\mathrm{cm} \\\\ & \mathrm{R}=(100 \pm 10) ~\mathrm{ohm} \\\\ & l=(15 \pm 0.2)~ \mathrm{cm} \end{aligned} $$

The percentage error in resistivity of the material of the wire is :
A
$37.3 \%$
B
$25.6 \%$
C
$35.6 \%$
D
$39.9 \%$
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