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

Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$

Assertion A : An electric fan continues to rotate for some time after the current is switched off.

Reason R : Fan continues to rotate due to inertia of motion.

In the light of above statements, choose the most appropriate answer from the options given below.

A
A is not correct but R is correct
B
A is correct but R is not correct
C
Both A and R are correct and R is the correct explanation of A
D
Both A and R are correct but R is NOT the correct explanation of A
2
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor

A
move in the straight line paths in the same direction
B
move with the uniform velocity throughout from lower potential to higher potential
C
drift from higher potential to lower potential.
D
move in the curved paths from lower potential to higher potential
3
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A gas mixture consists of 2 moles of oxygen and 4 moles of neon at temperature T. Neglecting all vibrational modes, the total internal energy of the system will be,

A
4RT
B
16RT
C
8RT
D
11RT
4
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will

A
move down with almost constant speed
B
move down with an acceleration equal to $$\mathrm{g}$$
C
move down with an acceleration greater than $$\mathrm{g}$$
D
oscillate inside the tube
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