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MHT-CET PCM 09 MHT - CET - MHT-CET PCM 09

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

Question types

MHT-CET PCM 09 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 09 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
Logic circuit shows the inputs A, Band C. The output Y is '0' (zero) when ______.
Image
  • A
    A = 1, B = 1, C=O
  • ✓
    A=O, B = 1, C= 1
  • C
    A= 1, B = 0, C = 1
  • D
    A = 0, B = 1, C = 1

Answer: B.

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Q 2MCQ1 Mark
In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. Then change in the base current is ____________.
  • A
    100 µA
  • B
    50 µA
  • ✓
    200 µA
  • D
    150 µA

Answer: C.

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Q 3MCQ1 Mark
Electron in Hydrogen atom first jumps from third excited state to second excited state and then from second excited state to first excited state. The ratio of the wavelengths $\lambda _1 : \lambda _2$ emitted in the two cases respectively is $............$
  • ✓
    $\frac{27}{5}$
  • B
    $\frac{20}{7}$
  • C
    $\frac{27}{20}$
  • D
    $\frac{7}{5}$

Answer: A.

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Q 4MCQ1 Mark
If the mass of the electron is reduced to half, the Rydberg constant ______.
  • A
    remains unchanged.
  • ✓
    becomes half.
  • C
    becomes double.
  • D
    becomes one fourth.

Answer: B.

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Q 5MCQ1 Mark
The photon of frequency vis incident on a metal surface whose threshold frequency is $v_0.$ The kinetic energy of the emitted photoelectrons will be$.......$
  • A
    $hv$
  • ✓
    $h \left( v - v _0\right)$
  • C
    $hv_0$
  • D
    $h \left( v + v _0\right)$

Answer: B.

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