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MHT-CET PCB 03 MHT - CET - MHT-CET PCB 03

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

Question types

MHT-CET PCB 03 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 03 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
For which logic gate is the following statement true? The output is high, if and only if all inputs are high.
  • ✓
    AND
  • B
    NAND
  • C
    OR
  • D
    NOR

Answer: A.

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Q 2MCQ1 Mark
In the symbol for a transistor, the arrow head points in the direction of the ____________.
  • A
    flow of majority carriers
  • B
    flow of the minority carries
  • C
    flow of electrons
  • ✓
    flow of holes

Answer: D.

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Q 3MCQ1 Mark
The electrical resistance of depletion layer is large because ____________.
  • A
    it has holes as charge carriers
  • B
    it has a large number of charge carriers
  • ✓
    it has no charge carriers
  • D
    it contains electrons as charge carriers

Answer: C.

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Q 4MCQ1 Mark
Two radioactive materials $X_1$ and $X_2$ have decay constants 10λ and λ respectively. If initially, they have the same number of nuclei, then the ratio of the number of nuclei of $X_1$ to that of $X_2$ will belie after a time.
  • A
    $1/(10λ)$
  • ✓
    $1/(9λ)$
  • C
    $1/(11λ)$
  • D
    $11/(10λ)$

Answer: B.

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Q 5MCQ1 Mark
In the $n^{th}$ orbit, the energy of an electron $E_n= -13.6/n^2eV$ for hydrogen atom. The energy required to take the electron from first orbit to second orbit will be ____________.
  • ✓
    10.2 eV
  • B
    13.6 eV
  • C
    12.1 eV
  • D
    3.4 eV

Answer: A.

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