MHT CET 2019 2nd May Morning Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

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The magnitude of the magnetic induction at a point on the axis at a large distance ( $r$ ) from the centre of a circular coil of ' $n$ ' turns and area ' $A$ ' carrying current ( $I$ ) is given by

$B_{\text {axis }}=\frac{\mu_0}{4 \pi} \cdot \frac{n A}{1 r^3}$

$B_{\text {axis }}=\frac{\mu_0}{4 \pi} \cdot \frac{2 n l A}{r^3}$

$B_{\text {axis }}=\frac{\mu_0}{4 \pi} \cdot \frac{2 n l}{A r^3}$

$B_{\text {axis }}=\frac{\mu_0}{4 \pi} \cdot \frac{n l A}{r^3}$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

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A metal sphere of radius ' $R$ ' and density ' $\rho_1$ ' is dropped in a liquid of density ' $\sigma$ ' moves with terminal velocity ' $v$ '. Another metal sphere of same radius and density ' $\rho_2$ ' is dropped in the same liquid, its terminal velocity will be

$\left.v\left[\rho_2+\sigma\right) /\left(\rho_1+\sigma\right)\right]$

$\left.v\left[\rho_1+\sigma\right) /\left(\rho_2+\sigma\right)\right]$

$v\left[\rho_2-\sigma) /\left(\rho_1-\sigma\right)\right]$

$\left.v\left[\rho_1-\sigma\right) /\left(\rho_2-\sigma\right)\right]$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

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If $\alpha$ is the coefficient of performance of a refrigerator and ' $Q$ ' is heat released to the hot reservoir, then the heat extracted from the cold reservoir ' $Q_2$ ' is

$\frac{\alpha Q_1}{\alpha-1}$

$\frac{\alpha-1}{\alpha} Q_1$

$\frac{\alpha Q_1}{1+\alpha}$

$\frac{1+\alpha}{\alpha} Q_1$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

The real force ' $F$ ' acting on a particle of mass $m$ ' performing circular motion acts along the radius of circle ' $r$ ' and is directed towards the centre of circle. The square root of magnitude of such force is ( $T=$ periodic time)

$\frac{2 \pi}{T} \sqrt{m r}$

$\frac{T m r}{4 \pi}$

$\frac{2 \pi T}{\sqrt{m r}}$

$\frac{T^2 m r}{4 \pi}$

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