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MHT-CET PCB 04 MHT - CET - MHT-CET PCB 04

Maharashtra Board - STD 12 Science - MHT - CET (MSBSHSE - English Medium). 200 questions in this chapter.

Question types

MHT-CET PCB 04 question types

200 questions across 1 question group — pick any mix to generate a MHT - CET paper with step-by-step answer keys.

200
Questions
1
Question groups
5
Question types
Sample Questions

MHT-CET PCB 04 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 the case of NAND gate, if A and Bare in the inputs and Y is the output, then ______.
  • ✓
    `"Y"=bar("A"*"B")`
  • B
    Y = A × B
  • C
    `"Y"=bar("A"+"B")`
  • D
    Y = A + B

Answer: A.

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Q 2MCQ1 Mark
In a silicon transistor, a change of 7.89 mA in the emitter current if produces a change of 7.8 mA in the collector current, then the base current must change by ____________.
  • A
    9 µA
  • B
    0.9 µA
  • C
    900 µA
  • ✓
    90 µA

Answer: D.

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Q 3MCQ1 Mark
A common emitter amplifier is designed with n-p-n transistor (α = 0.99). The input impedance is 1 kΩ and the load is 10 kΩ. The voltage gain will be ______
  • A
    9.9
  • B
    99
  • C
    9900
  • ✓
    990

Answer: D.

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Q 4MCQ1 Mark
Using Bohr's quantization condition, what is the rotational energy in the second orbit for a diatomic molecule. (I = moment of inertia of diatomic molecule, h = Planck's constant)
  • A
    `"h"/(2"I"^2 pi)`
  • ✓
    `"h"^2/(2"I" pi)`
  • C
    `"h"/(2"I" pi^2)`
  • D
    `"h"^2/(2"I"^2 pi^2)`

Answer: B.

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Q 5MCQ1 Mark
In Bohr's model of hydrogen atom, the period of revolution of the electron in any orbit is proportional to ______.
  • A
    square root of the quantum number.
  • B
    square of the quantum number.
  • ✓
    cube of the quantum number
  • D
    the quantum number.

Answer: C.

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