1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following is not a characteristic of diamagnetism?
A
The material moves from a region of strong magnetic field to weak magnetic field.
B
The origin of diamagnetism is the spin of electrons.
C
Their magnetic susceptibility is small and negative.
D
Diamagnetic materials are repelled by bar magnets.
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
An ideal inductor is connected across a capacitor. Oscillations of energy $K$ are set up in the circuit. The capacitor plates are slowly drawn apart such that the frequency of oscillations is quadrupled. The work done in the process is
A
15K
B
13K
C
zero
D
2K
3
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A symmetric double convex lens is cut into two equal parts by a plane perpendicular to the principal axis. If the power of the original lens is 4D, the difference between the powers of the original lens and the cut lens is
A
zero
B
3D
C
D
D
2D
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Three identical conducting balls $\mathrm{A}, \mathrm{B}$ and C , each of mass m , are thrown upward at an angle $\Theta$ to the horizontal with an initial speed $v$ in a region of space that has a uniform electric field $E$ downward along with the gravitational field $g . A$ is positively charged, B is uncharged and C is negatively charged. Rank the ranges R of these three balls in increasing order.
A
$R_A< R_B< R_C$
B
$R_B< R_C< R_A$
C
$R_A=R_B< R_C$
D
$R_C< R_B< R_A$
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12