1
MHT CET 2025 26th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A same torque is applied to a disc and a ring of equal mass and radii then

A
the ring will rotate with greater angular frequency.
B
both will rotate with same angular frequency.
C
the disc will rotate with greater angular frequency.
D
both will rotate with same angular velocity.
2
MHT CET 2025 26th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A capacitor of unknown capacity is connected across a battery of V volt. The charge stored in it is Q coulomb. When potential across the capacitor is reduced by $\mathrm{V}_1$ volt, the charge stored in it becomes $\mathrm{Q}_1$ coulomb. The potential V is

A

$\frac{\mathrm{QV}_1}{\mathrm{Q}-\mathrm{Q}_1}$

X
B

$\frac{Q_1 V_1}{Q+Q_1}$

C

$\frac{Q_1}{Q}$

D

$\frac{Q}{Q_1}$

3
MHT CET 2025 26th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

If p-n junction diode is forward biased, then

A

electric conduction is not possible.

B

width of depletion layer decreases.

C

width of depletion layer increases.

D

barrier voltage increases.

4
MHT CET 2025 26th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two spherical black bodies have radii ' $R_1$ ' and ' $\mathrm{R}_2$ '. Their surface temperatures are ' $\mathrm{T}_1$ ' and ' $T_2$ '. If they radiate same power, then $\frac{R_2}{R_1}$ is

A

$\frac{T_2}{T_1}$

B

$\frac{T_1}{T_2}$

C

$\left(\frac{T_2}{T_1}\right)^2$

D

$\left(\frac{T_1}{T_2}\right)^2$

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