1
MHT CET 2024 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A regular hexagon of side 10 cm has a charge $1 \mu \mathrm{C}$ at each of its vertices. The potential at the centre of hexagon is $\left[\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9\right.$ SI unit $]$

A
$1.8 \times 10^5$ volt
B
$3.6 \times 10^5$ volt
C
$5.4 \times 10^5$ volt
D
$7.2 \times 10^5$ volt
2
MHT CET 2024 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A wheel of radius 1 m rolls through $180^{\circ}$ over a plane surface. The magnitude of the displacement of the point of the wheel initially in contact with the surface is.

A
$2 \pi$
B
$\pi$
C
$\sqrt{\pi^2+4}$
D
$3 \pi$
3
MHT CET 2024 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The end correction of resonance tube is 1 cm. If the shortest length resonating with a tuning fork is 15 cm , the next resonating length will be

A
35 cm
B
40 cm
C
47 cm
D
64 cm
4
MHT CET 2024 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When 80 volt d.c. is applied across a solenoid, a current of 0.8 A flows in it. When 80 volt a.c. is applied across the same solenoid, the current becomes 0.4 A . If the frequency of a.c. source is 50 Hz , the impedance and inductance of the solenoid is nearly

A
$200 \Omega, 0.55 \mathrm{H}$
B
$100 \Omega, 0.8 \mathrm{H}$
C
$300 \Omega, 1.2 \mathrm{H}$
D
$200 \Omega, 1.5 \mathrm{H}$
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