MHT-CET PCB 06 - Maharashtra Board STD 12 Science MHT - CET Questions

200

Questions

1

Question groups

5

Question types

01

MCQ

200 Q→

Sample Questions

MHT-CET PCB 06 questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark

In a study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98. The collector current is 3mA, then base current will be approximately ______.

A
60mA
B
6µA
✓
60µA
D
6mA

Answer: C.

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Q 2MCQ1 Mark

In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be: ____________.

A
45°
B
90°
✓
180°
D
135°

Answer: C.

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Q 3MCQ1 Mark

Least doped region in a transistor ____________.

A
Collector
B
Either emitter or collector
C
Emitter
✓
Base

Answer: D.

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Q 4MCQ1 Mark

The radius of orbit of an electron in hydrogen atom in its ground state is $5.3 \times 10^{-11} m$ After collision with an electron, it is found to have a radius of $13.25 \times 10^{-10} m$. The principal quantum number n of the final state of the atom is ______.