1
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An air cored coil has a self inductance 0.1 H . A soft iron core of relative permeability 1000 is introduced and the number of turns is reduced $\left(\frac{1}{10}\right)^{\text {th }}$. The value of self inductance is

A
0.1 H
B
1 mH
C
1 H
D
10 mH
2
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Heat engine operating between temperature $T_1$ and $T_2$ has efficiency $\frac{1}{6}$. When $T_2$ is lowered by 62 K , its efficiency increases to $\frac{1}{3}$. Then $T_1$ and $T_2$ respectively are

A
$372 \mathrm{~K}, 310 \mathrm{~K}$
B
$372 \mathrm{~K}, 330 \mathrm{~K}$
C
$330 \mathrm{~K}, 268 \mathrm{~K}$
D
$310 \mathrm{~K}, 248 \mathrm{~K}$
3
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The angle of minimum deviation produced by a thin prism in air is $\delta_1$. If it is immersed in water the angle of minimum deviation is

$$\left[\mathrm{a}_{\mathrm{g}}=\frac{3}{2}, \mathrm{a}_{\mathrm{w}}=\frac{4}{3}\right]$$

A
$2 \delta_1$
B
$\frac{\delta_1}{2}$
C
$\frac{\delta_1}{3}$
D
$\frac{\delta_1}{4}$
4
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An electron is revolving in a circular orbit of radius $r$ in a hydrogen atom. The angular momentum of the electron is L . The relation between dipole moment (m) associated with it, gyromagnetic ratio ( R ) and L is

A
$\mathrm{m}=-\frac{\mathrm{L}}{\mathrm{R}}$
B
$\mathrm{m}=-\mathrm{RL}$
C
$\mathrm{m}=-\mathrm{RL}^2$
D
$\mathrm{m}=\frac{\mathrm{R}}{\mathrm{L}}$
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