MHT CET 2021 22th September Evening Shift | MHT CET Year Wise Previous Years Questions

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following gates will give an output '1' for the given inputs?

MHT CET 2021 22th September Evening Shift Physics - Semiconductor Devices and Logic Gates Question 117 English

II and III

I and IV

I and III

II and IV

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

For a common-emitter amplifier, the voltage gain is 40. Its input and output impedances are $$100 \Omega$$ and $$400 \Omega$$, respectively. The power gain of the CE amplifier will be

450

400

300

500

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

A tuning fork of frequency '$$n$$' is held near the open end of tube which is closed at the other end and the lengths are adjusted until resonance occurs. The first resonance occurs at length $$L_1$$ and immediate next resonance occurs at length $$L_2$$. The speed of sound in air is

$$n\left(L_2-L_1\right)$$

$$\frac{\mathrm{n}\left(\mathrm{L}_2-\mathrm{L}_1\right)}{2}$$

$$2 n\left(L_2-L_1\right)$$

$$\frac{\mathrm{n}\left(\mathrm{L}_2+\mathrm{L}_1\right)}{2}$$

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

In parallel plate capacitor, electric field between the plates is '$$E$$'. If the charge on the plates is '$$Q$$' then the force on each plate is

$$\frac{\mathrm{QE}^2}{2}$$

$$\mathrm{QE}^2$$

$$\frac{\mathrm{QE}}{2}$$

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