1
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In resistance thermometer, the resistance at $0^{\circ} \mathrm{C}$ and $100^{\circ} \mathrm{C}$ are $6.74 \Omega$ and $7.74 \Omega$ respectively. The temperature corresponding to $6.53 \Omega$ resistance is

A

$+53^{\circ} \mathrm{C}$

B

$+21^{\circ} \mathrm{C}$

C

$-53^{\circ} \mathrm{C}$

D

$-21^{\circ} \mathrm{C}$

2
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two bodies A and B have their moments of inertia I and 3I respectively about their axis of rotation. their kinetic energies of rotation are also equal. The ratio of angular momenta of body A to that of body B is

A

$1: 3$

B

$3: 1$

C

$1: \sqrt{3}$

D

$\sqrt{3}: 1$

3
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Glass has refractive index ' $n$ ' with respect to air and ' $\theta$ ' is the critical angle for a ray of light going from glass to air. If a ray of light is incident from air on the glass with angle of incidence ' $\theta$ ', corresponding angle of refraction is

A

$\sin ^{-1}\left(\frac{1}{n}\right)$

B

$\quad \sin ^{-1}(\mathrm{n})$

C

$\sin ^{-1}\left(\frac{1}{\mathrm{n}^2}\right)$

D

$\sin ^{-1}\left(\frac{1}{\sqrt{n}}\right)$

4
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

An elastic conducting material is stretched into a circular loop. It is placed with its plane perpendicular to uniform magnetic field $\mathrm{B}=0.6 \mathrm{~T}$. When loop is released, the radius starts shrinking at constant rate $3 \mathrm{~cm} / \mathrm{s}$. The induced e.m.f. in the loop at an instant when the radius of the loop is 10 cm will be (in mV )

A

$2.6 \pi$

B

$3.6 \pi$

C

$3.2 \pi$

D

$1.8 \pi$