MHT CET 2020 16th October Evening Shift | MHT CET Year Wise Previous Years Questions

A block of mass $$m$$ is moving on rough horizontal surface with momentum $$p$$. The coefficient of friction between the block and surface is $$\mu$$. The distance covered by block before it stops is [$$g=$$ acceleration due to gravity]

$$\frac{2 \mu M^2 g}{p^2}$$

$$\frac{p}{2 \mu M g}$$

$$\frac{2 \mu M g}{p}$$

$$\frac{p^2}{2 \mu M^2 g}$$

MHT CET 2020 16th October Evening Shift

MCQ (Single Correct Answer)

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A large open tank containing water has two holes to its wall. A square hole of side $a$ is made at a depth $$y$$ and a circular hole of radius $$r$$ is made at a depth $$16 y$$ from the surface of water. If equal amount of water comes out through both the holes per second, then the relation between $$r$$ and $$a$$ will be

$$r=\frac{a}{2 \sqrt{\pi}}$$

$$r=\frac{a}{2 \pi}$$

$$r=\frac{2 a}{\pi}$$

$$r=\frac{2 \mathrm{a}}{\sqrt{\pi}}$$

MHT CET 2020 16th October Evening Shift

MCQ (Single Correct Answer)

-0

Refractive index of the medium is $$\mu$$ and wavelength is $$\lambda$$, then which of the following proportionality relation is correct?

$$\mu \propto \lambda^2$$

$$\mu \propto \frac{1}{\lambda}$$

$$\mu \propto \lambda$$

$$\mu \propto \frac{1}{\lambda^2}$$