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MHT-CET PCM 08 MHT - CET - MHT-CET PCM 08

Maharashtra Board - STD 12 Science - MHT - CET (MSBSHSE - English Medium). 150 questions in this chapter.

Question types

MHT-CET PCM 08 question types

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

150
Questions
1
Question groups
5
Question types
Sample Questions

MHT-CET PCM 08 questions

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

Q 2MCQ1 Mark
In common emitter mode of transistor, the d.c. current gain is 20, the emitter current is 7 mA. The collector current is ______.
  • A
    8/3 mA
  • B
    16/3 mA
  • C
    13/3 mA
  • ✓
    20/3 mA

Answer: D.

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Q 3MCQ1 Mark
In hydrogen atom, during the transition of electron from $n^{th} $ outer orbit to first Bohr orbit, a photon of wavelength $\lambda$ is emitted. The value of $'n\ '$ is $[R =$Rydberg's constant$]......$
  • A
    $\sqrt{\lambda R (\lambda R -1)}$
  • ✓
    $\sqrt{\frac{\lambda R }{\lambda R -1}}$
  • C
    $\sqrt{\frac{\lambda R -1}{\lambda R }}$
  • D
    $\sqrt{\lambda( R -1)}$

Answer: B.

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Q 4MCQ1 Mark
In hydrogen atom, the product of the angular momentum and the linear momentum of the electron is proportional to $(n =$ principal quantum number $) .......$
  • A
    $n^3$
  • ✓
    $n^0$
  • C
    $n^1$
  • D
    $n^2$

Answer: B.

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Q 5MCQ1 Mark
If the kinetic energy of a particle is increased to 16 times its previous value, the percentage change in the de-Broglie wavelength of the particle is ____________.
  • ✓
    75
  • B
    25
  • C
    5
  • D
    50

Answer: A.

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