MHT CET 2025 21st April Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2025 21st April Evening Shift

MCQ (Single Correct Answer)

-0

A Carnot engine has efficiency $\frac{1}{6}$. It becomes $\frac{1}{3}$, when the temperature of $\operatorname{sink}$ is lowered by

57 K . The temperature of the source is

171 K

399 K

342 K

285 K

MHT CET 2025 21st April Evening Shift

MCQ (Single Correct Answer)

-0

An alternating e.m.f. having voltage $\mathrm{V}=\mathrm{V}_0 \sin \omega t$ is applied to a series L-C-R circuit. Given : $\left|X_L-X_C\right|=R$. The r.m.s. value of potential difference across capacitor will be

$\quad \mathrm{V}_0 \mathrm{R} \omega \mathrm{C}$

$\frac{\mathrm{V}_0}{\mathrm{R} \omega \mathrm{C}}$

$\frac{\mathrm{V}_0}{2 \mathrm{R} \omega \mathrm{C}}$

$\frac{\mathrm{V}_0}{\sqrt{2} \mathrm{R} \omega \mathrm{C}}$

MHT CET 2025 21st April Evening Shift

MCQ (Single Correct Answer)

-0

A simple pendulum oscillates with an angular amplitude $\theta$. If the maximum tension in the string is 4 times the minimum tension then the value of $\theta$ is

$\cos ^{-1}(0.75)$

$\cos ^{-1}(0.5)$

$\sin ^{-1}(0.5)$

$\sin ^{-1}(0.75)$

MHT CET 2025 21st April Evening Shift

MCQ (Single Correct Answer)

-0

An electron moves in Bohr orbit. The magnetic field at the centre is proportional to

$\mathrm{n}^{-2}$

$\mathrm{n}^{-3}$

$\mathrm{n}^{-4}$

$\mathrm{n}^{-5}$