1
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The magnetic moments associated with two closely wound circular coils $$\mathrm{A}$$ and $$\mathrm{B}$$ of radius $$\mathrm{r}_{\mathrm{A}}=10$$ $$\mathrm{cm}$$ and $$\mathrm{r}_{\mathrm{B}}=20 \mathrm{~cm}$$ respectively are equal if : (Where $$\mathrm{N}_{\mathrm{A}}, \mathrm{I}_{\mathrm{A}}$$ and $$\mathrm{N}_{\mathrm{B}}, \mathrm{I}_{\mathrm{B}}$$ are number of turn and current of $$\mathrm{A}$$ and $$\mathrm{B}$$ respectively)

A
$$4 \mathrm{~N}_{\mathrm{A}} \mathrm{I}_{\mathrm{A}}=\mathrm{N}_{\mathrm{B}} \mathrm{I}_{\mathrm{B}}$$
B
$$2 \mathrm{~N}_{\mathrm{A}} \mathrm{I}_{\mathrm{A}}=\mathrm{N}_{\mathrm{B}} \mathrm{I}_{\mathrm{B}}$$
C
$$\mathrm{N}_{\mathrm{A}}=2 \mathrm{~N}_{\mathrm{B}}$$
D
$$\mathrm{N}_{\mathrm{A}} \mathrm{I}_{\mathrm{A}}=4 \mathrm{~N}_{\mathrm{B}} \mathrm{I}_{\mathrm{B}}$$
2
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The figure represents the momentum time ($$\mathrm{p}-\mathrm{t}$$) curve for a particle moving along an axis under the influence of the force. Identify the regions on the graph where the magnitude of the force is maximum and minimum respectively?

If $$\left(t_{3}-t_{2}\right) < t_{1}$$

JEE Main 2023 (Online) 30th January Morning Shift Physics - Center of Mass and Collision Question 14 English

A
b and c
B
c and a
C
a and b
D
c and b
3
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

If the gravitational field in the space is given as $$\left(-\frac{K}{r^{2}}\right)$$. Taking the reference point to be at $$\mathrm{r}=2 \mathrm{~cm}$$ with gravitational potential $$\mathrm{V}=10 \mathrm{~J} / \mathrm{kg}$$. Find the gravitational potential at $$\mathrm{r}=3 \mathrm{~cm}$$ in SI unit (Given, that $$\mathrm{K}=6 \mathrm{~Jcm} / \mathrm{kg}$$)

A
9
B
11
C
10
D
12
4
JEE Main 2023 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match Column-I with Column-II :

Column-I
($$x$$-t graphs)
Column-II
($$v$$-t graphs)
A. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 1 I. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 2
B. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 3 II. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 4
C. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 5 III. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 6
D. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 7 IV. JEE Main 2023 (Online) 30th January Morning Shift Physics - Motion Question 37 English 8

Choose the correct answer from the options given below:

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