1
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A completely filled water tank of height ' $h$ ' has a hole at the bottom. The total pressure of the bottom is 4 H and atmospheric pressure is H . The velocity of water flowing out of the hole is ( $\rho=$ density of water)

A
$\sqrt{\frac{3 H}{\rho}}$
B
$\sqrt{\frac{5 H}{\rho}}$
C
$\sqrt{\frac{6 H}{\rho}}$
D
$\sqrt{\frac{9 H}{\rho}}$
2
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A series resonant circuit consists of inductor ' $L$ ' of negligible resistance and a capacitor ' $C$ ' which produces resonant frequency ' $f$ '. If $L$ is changed to 3 L and ' C ' is changed to 6 C , the resonant frequency will become.

A
$\frac{\mathrm{f}}{6}$
B
$\frac{\mathrm{f}}{3}$
C
$\frac{\mathrm{f}}{2 \sqrt{2}}$
D
$\frac{\mathrm{f}}{3 \sqrt{2}}$
3
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Let ' $l_1$ ' be the length of simple pendulum. Its length changes to ' $l_2$ ' to increase the periodic time by $20 \%$. The ratio $\frac{l_2}{l_1}=$

A
1.22
B
1.33
C
1.44
D
1.55
4
MHT CET 2024 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When the listener moves towards stationary source with velocity ' $\mathrm{V}_1$ ', the apparent frequency of emitted note is ' $F_1$ '. When observer moves away from the source with velocity ' $\mathrm{V}_1$ ', apparent frequency is ' $F_2$ '. If V is the velocity of sound in air and $\frac{F_1}{F_2}=2$ then $\frac{V}{V_1}$ is

A
,2
B
3
C
4
D
5
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