MHT CET 2023 9th May Evening Shift | MHT CET Year Wise Previous Years Questions

A particle of mass '$$\mathrm{m}$$' moves along a circle of radius '$$r$$' with constant tangential acceleration. If K.E. of the particle is '$$E$$' by the end of third revolution after beginning of the motion, then magnitude of tangential acceleration is

$$\frac{\mathrm{E}}{2 \pi \mathrm{rm}}$$

$$\frac{\mathrm{E}}{6 \pi \mathrm{rm}}$$

$$\frac{\mathrm{E}}{8 \pi \mathrm{rm}}$$

$$\frac{\mathrm{E}}{4 \pi \mathrm{rm}}$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

An e.m.f. $$E=4 \cos (1000 t)$$ volt is applied to an LR circuit of inductance $$3 \mathrm{~mH}$$ and resistance $$4 ~\Omega$$. The maximum current in the circuit is

$$\frac{4}{\sqrt{7}} \mathrm{~A}$$

$$1.0 \mathrm{~A}$$

$$\frac{4}{7} \mathrm{~A}$$

$$0.8 \mathrm{~A}$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

In the reverse biasing of a p-n junction diode :

the width of the depletion layer decreases.

the width of the depletion layer increases.

the number of minority charge carriers increase.

the number of majority charge carriers increase.