1
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A thin metal wire of length 'L' and uniform linear mass density '$\rho$' is bent into a circular coil with 'O' as centre. the moment of inertia of a coil about the axis XX' is

MHT CET 2019 2nd May Morning Shift Physics - Rotational Motion Question 1 English

A
$\frac{3 \rho L^3}{8 \pi^2}$
B
$\frac{\rho L^3}{4 \pi^2}$
C
$\frac{3 \rho L^2}{4 \pi^2}$
D
$\frac{\rho L^3}{8 \pi^2}$
2
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The dimensions of torque are same as that of

A
moment of force
B
pressure.
C
acceleration
D
impulse
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

. For a transistor, the current ratio ' $\beta_{d c}$ ' is defined as the ratio of

A
collector current to emitter current.
B
collector current to base current.
C
base current to collector current.
D
emitter current to collector current.
4
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A clock pendulum having coefficient of linear expansion. $\alpha=9 \times 10^{-7} /{ }^{\circ} \mathrm{C}^{-1}$ has a period of 0.5 s at $20^{\circ} \mathrm{C}$. If the clock is used in a climate, where the temperature is $30^{\circ} \mathrm{C}$, how much time does the clock lose in each oscillation? ( $g=$ constant)

A
$25 \times 10^{-7} \mathrm{~s}$
B
$5 \times 10^{-7} \mathrm{~s}$
C
$1.125 \times 10^{-6} \mathrm{~s}$
D
$2.25 \times 10^{-6} \mathrm{~s}$
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