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Wave Optics Physics - Wave Optics

CBSE - STD 12 Science - Physics (CBSE - English Medium). 97 questions in this chapter.

Question types

Wave Optics question types

97 questions across 6 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

97
Questions
6
Question groups
5
Question types
Sample Questions

Wave Optics questions

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

Q 2M.C.Q (1 Marks)1 Mark
In case of linearly polarized light, the magnitude of the electric field vector :
  • A
    Does not change with time
  • ✓
    Changes periodically with time
  • C
    Increases or decreases linearly with time
  • D
    Is parallel to the direction of propagation

Answer: B.

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Q 3M.C.Q (1 Marks)1 Mark
When reflected light of intensity $I_0$ is incident on a polarizing sheet then the intensity of that light, which does not transmit is :
  • A
    $\frac{1}{4} I _0$
  • ✓
    $\frac{1}{2} I _0$
  • C
    $I _0$
  • D
    Zero

Answer: B.

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Q 4M.C.Q (1 Marks)1 Mark
The wavelength of light used in an optical instrument is $\lambda_1=4000 Å$ and $\lambda_2=5000 Å$. The ratio of their corresponding resolution powers will be :
  • A
    $16: 25$
  • B
    $9: 1$
  • C
    $4: 5$
  • ✓
    $5: 4$

Answer: D.

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Q 5M.C.Q (1 Marks)1 Mark
Two coherent sources whose frequency ratio is $100: 1$ used to generate interference fringes. The ratio of maximum and minimum intensity in fringes will be :
  • A
    $100: 1$
  • ✓
    $121: 81$
  • C
    $1: 1$
  • D
    $5: 1$

Answer: B.

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