1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A $$5.0 \mathrm{~V}$$ stabilized power supply is required to be designed using a $$12 \mathrm{~V}$$ DC power supply as input source. The maximum power rating of zener diode is $$2.0 \mathrm{~W}$$. The minimum value of resistance $$R_{\mathrm{s}}$$ in $$\Omega$$ connected in series with zener diode will be

A
16.5
B
17.5
C
18.5
D
15.5
2
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A jar '$$\mathrm{P}$$' is filled with gas having pressure, volume and temperature $$\mathrm{P}, \mathrm{V}, \mathrm{T}$$ respectively. Another gas jar $$Q$$ filled with a gas having pressure $$2 \mathrm{P}$$, volume $$\frac{\mathrm{V}}{4}$$ and temperature $$2 \mathrm{~T}$$. The ratio of the number of molecules in jar $$\mathrm{P}$$ to those in jar $$Q$$ is

A
$$1: 1$$
B
$$1: 2$$
C
$$2: 1$$
D
$$4: 1$$
3
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The magnetic flux through a loop of resistance $$10 ~\Omega$$ varying according to the relation $$\phi=6 \mathrm{t}^2+7 \mathrm{t}+1$$, where $$\phi$$ is in milliweber, time is in second at time $$\mathrm{t}=1 \mathrm{~s}$$ the induced e.m.f. is

A
$$12 \mathrm{~mV}$$
B
$$7 \mathrm{~mV}$$
C
$$19 \mathrm{~mV}$$
D
$$19 \mathrm{~V}$$
4
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A thin rod of length '$$L$$' is bent in the form of a circle. Its mass is '$$M$$'. What force will act on mass '$$m$$' placed at the centre of this circle?

( $$\mathrm{G}=$$ constant of gravitation)

A
zero
B
$$\frac{\mathrm{GMm}}{4 \mathrm{~L}^2 \pi^2}$$
C
$$\frac{4 \pi^2 \mathrm{GMm}}{\mathrm{L}}$$
D
$$\frac{2 \mathrm{GMm}}{\mathrm{L}^2}$$
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