1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The potential energy of a particle of mass 0.1 kg moving along the $X$-axis, is given by $U=5 x(x-4) \mathrm{J}$, where $x$ is in metres. Choose the wrong option.

A
The speed of the particle is maximum at $x=2 \mathrm{~m}$
B
The particle executes simple harmonic motion
C
The period of oscillation of the particle is $\frac{\pi}{5} \mathrm{~s}$
D
None of the above
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

If gravitational attraction between two points masses be given by $F=G \frac{m_1 m_2}{r^n}$, then the period of a satellite in a circular orbit will be proportional to

A
$r^{\frac{n-1}{2}}$
B
$r^{\frac{n+1}{2}}$
C
$r^{\frac{n}{2}}$
D
independent of $n$
3
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

Imagine a system of unit in which the unit of mass is 10 kg , length is 1 km and time is 1 min. Then, 1 J in this system is equal to

A
360
B
3.6
C
$36 \times 10^5$
D
$36 \times 10^{-5}$
4
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an AC supply of 110 V and a current of 10 A flows in it. The voltage across the secondary and the current in it, respectively, are

A
$55 \mathrm{~V}, 20 \mathrm{~A}$
B
$440 \mathrm{~V}, 5 \mathrm{~A}$
C
$220 \mathrm{~V}, 10 \mathrm{~A}$
D
$220 \mathrm{~V}, 5 \mathrm{~A}$
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