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MHT CET Physics Model Test 03 MHT - CET - MHT CET Physics Model Test 03

Maharashtra Board - STD 12 Science - MHT - CET (MSBSHSE - English Medium). 50 questions in this chapter.

Question types

MHT CET Physics Model Test 03 question types

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

50
Questions
1
Question groups
5
Question types
Sample Questions

MHT CET Physics Model Test 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 an ideal diode, the current in the following arrangement is ______. 
Image
  • ✓
    10 mA
  • B
    10 A
  • C
    20 mA
  • D
    1 mA

Answer: A.

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Q 2MCQ1 Mark
'Half-life' of a radioactive substance accounts for ______.
  • A
    time required for complete disintegration of radioactive substance.
  • ✓
    time required for the disintegration of half the radioactive substance.
  • C
    time required for two-third disintegration of radioactive substance.
  • D
    time required for one-third disintegration of radioactive substance.

Answer: B.

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Q 3MCQ1 Mark
If n is principal quantum number and r is the radius of the orbit in which electron revolves around nucleus, then its kinetic energy is ____________.
  • A
    inversely proportional to n and r
  • ✓
    inversely proportional to $n^2$ and r
  • C
    directly proportional to $n^2$ and r
  • D
    directly proportional to n and r

Answer: B.

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Q 4MCQ1 Mark
According to de Broglie, wave is associated with matter ____________.
  • A
    none of the above
  • B
    when it is in motion with the velocity of light only
  • C
    when it is stationary
  • ✓
    when it is in motion with any velocity

Answer: D.

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Q 5MCQ1 Mark
A metal surface having work function $'w_0$' emits photoelectrons when photons of energy 'E' are incident on it. The electron enters the uniform magnetic field (B) in perpendicular direction and moves in circular path of radius 'r'. Then 'r' is equal to (m and e be the mass and charge of electron respectively) ____________.
  • ✓
    `sqrt(2"m" ("E" - "w"_0))/"eB"`
  • B
    `("m" ("E" - "w"_0))/"eB"`
  • C
    `sqrt("m" ("E" - "w"_0))/"eB"`
  • D
    `(2"m" ("E" - "w"_0))/"eB"`

Answer: A.

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