1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A cylindrical tank 0.5 m in radius, rests on a platform 1.5 m high. Initially the tank is filled with water to a height of 2.5 m . A small plug whose area is $10^{-4} \mathrm{~m}^2$ is removed from an orifice located on the side of the tank at the bottom. The speed with which the water strikes the ground is: [Assume $g=10 \mathrm{~ms}^{-2}$ ]
A
$7.07 \mathrm{~ms}^{-1}$
B
$5.1 ~m s^{-1}$
C
$5.47 \mathrm{~ms}^{-1}$
D
$7.62 ~m s^{-1}$
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
A long solenoid has 400 turns. When a current of 100 A is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4 mWb . The self-inductance of the solenoid is
A
1.6 mH
B
16 mH
C
16 H
D
0.16 mH
3
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following is not true for a perfect conductor?
A
Electric field inside a conductor is zero
B
The electric field just outside a conductor is always perpendicular to the surface.
C
The surface of a conductor is an equipotential surface.
D
The charge carried by a conductor is always uniformly distributed over the surface of the conductor irrespective of the shape of the conductor.
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Young's modulus of the material of wires X and Y are in the ratio 4:1 and the areas of cross sections of the wires X and Y are in the ratio $2: 1$. If the same amount of load is applied to both the wires, the ratio of elongation produced in the wires X and Y will be: (Assume length of the wires X and Y initially are the same)
A
$1: 8$
B
$1: 1$
C
$8: 1$
D
$1: 2$
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