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Electron, Photon, Photoelectric Effect and X-Rays Physics - Electron, Photon, Photoelectric Effect and X-Rays

Rajasthan Board (RBSE) - STD 12 Science - Physics (Rajasthan - English Medium). 459 questions in this chapter.

Question types

Electron, Photon, Photoelectric Effect and X-Rays question types

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

459
Questions
1
Question groups
5
Question types
Sample Questions

Electron, Photon, Photoelectric Effect and X-Rays questions

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

Q 1M.C.Q (1 Marks)1 Mark
Assertion : X-rays can penetrate through the flesh but not through the bones.
Reason : The penetrating power of X-rays depends on voltage.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • ✓
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.

Answer: B.

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Q 2M.C.Q (1 Marks)1 Mark
Assertion : Electric conduction in gases is possible at normal pressure.
Reason : The electric conduction in gases depends only upon the potential difference between the electrodes.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • ✓
    If the assertion and reason both are false.

Answer: D.

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Q 3M.C.Q (1 Marks)1 Mark
Assertion : The phenomenon of ­X-ray production is basically inverse of photoelectric effect.
Reason : X-rays are electromagnetic waves.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • ✓
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.

Answer: B.

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Q 4M.C.Q (1 Marks)1 Mark
Assertion : X-rays are used for studying the structure of crystals.
Reason : The distance between the atoms of crystals is of the order of wavelength of X-rays.
  • ✓
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.

Answer: A.

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Q 5M.C.Q (1 Marks)1 Mark
Assertion : Penetrating power of X-rays increases with the increasing the wavelength.
Reason : The penetrating power of X-rays increases with the frequency of X-rays.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • ✓
    If assertion is false but reason is true.

Answer: D.

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