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MHT-CET PCM 03 MHT - CET - MHT-CET PCM 03

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

Question types

MHT-CET PCM 03 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 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
In case of npn transistors, the collector current is always less than the emitter current because ______.
  • A
    collector being reverse biased attracts less electrons.
  • ✓
    after electrons are lost in the base, only remaining ones reach the collector.
  • C
    collector side is forward biased and emitter side is reverse biased.
  • D
    collector side is reverse biased and emitter side is forward biased.

Answer: B.

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Q 2MCQ1 Mark
What will be the current flowing through the 6 kΩ resistor in the circuit shown, where the breakdown voltage of the Zener is 6V? 
Image
  • ✓
    `2/3`mA
  • B
    `3/2`mA
  • C
    10 mA
  • D
    1 mA

Answer: A.

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Q 3MCQ1 Mark
Which of the following statements about the Bohr model of the hydrogen atom is FALSE?
  • ✓
    Potential energy of electron in n = 2 orbit is less than that in n = 1 orbit.
  • B
    Kinetic energy of electron in n = 2 orbit is less than that in n = 1 orbit.
  • C
    Acceleration of electron in n = 2 orbit is less than that in n = 1 orbit.
  • D
    Angular momentum of electron in n = 2 orbit is more than that in n = 1 orbit.

Answer: A.

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Q 4MCQ1 Mark
Thomson's atomic model could not explain ____________ successfully.
  • A
    ionization of particles
  • B
    photoelectric effect
  • ✓
    `alpha` - particle scattering
  • D
    thermionic emission

Answer: C.

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Q 5MCQ1 Mark
The de Broglie wavelength associated with photon is, ____________.
  • A
    `lambda = h/c`
  • B
    `lambda = h/m`
  • C
    `lambda = m/(hc)`
  • ✓
    `lambda = h/(mc)`

Answer: D.

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