1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A potentiometer wire has length $L$ For given cell of emf $E$, the balancing length is $\frac{L}{3}$ from the positive end of the wire. If the length of potentiometer wire is increased by $50 \%$, then for the same cell, the balance point is obtained at length

A
$\frac{L}{2}$ from positive end
B
$\frac{L}{5}$ from positive end
C
$\frac{L}{3}$ from positive end
D
$\frac{L}{4}$ from positive end
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For homogeneous isotropic material, which one of the following cannot be the value of Poisson's ratio?

A
0.1
B
$-$1
C
0.5
D
0.8
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A mass is whirled in a circular path with constant angular velocity and its linear velocity is $v$. If the string is now halved keeping the angular momentum same, the linear velocity is

A
$2 v$
B
$\frac{v}{2}$
C
$v$
D
$v \sqrt{2}$
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A circular coil and a square coil is prepared from two identical metal wires and a current is passed through it. Ratio of magnetic dipole moment associated with circular coil to that of square coil is

A
$\frac{2}{\pi}$
B
$\frac{\pi}{2}$
C
$\pi$
D
$\frac{4}{\pi}$
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