Wave Optics — Practice Quiz
Maharashtra Board · Class 12 · Physics
Try a 4-question quiz on Wave Optics for Maharashtra Board Class 12 Physics: tap an answer to check it and see why. 44 questions in the full chapter test.
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Quick Quiz: Wave Optics
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What is the speed of light in a medium with refractive index 1.5? (Speed of light in vacuum = 3 × 10⁸ m/s)
In Young's double slit experiment, if the distance between slits is 2 mm and the distance to screen is 2 m, what is the fringe width for light of wavelength 600 nm?
According to Huygens' principle, each point on a wavefront acts as a source of:
What is the wavelength of light in water if its wavelength in air is 600 nm? (Refractive index of water = 1.33)
Sample Questions
Which of the following phenomena can be explained by wave nature of light?
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Interference, Diffraction, Polarization
Interference, diffraction, and polarization can only be explained by wave nature of light. The photoelectric effect requires particle nature of light (photons) for explanation.
Unpolarized light passing through a polarizer has its intensity reduced to:
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Half the original
When unpolarized light passes through a polarizer, the intensity is reduced to half because only one component of the electric field vector passes through.
In single slit diffraction, the first minimum occurs when the path difference between extreme rays is:
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λ
For single slit diffraction, the first minimum occurs when a sin θ = λ, where 'a' is the slit width. This allows pairing of rays with λ/2 path difference for destructive interference.
Which of the following are characteristics of coherent sources?
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Same frequency, Constant phase difference
Coherent sources must have the same frequency and a constant phase difference. Same amplitude and polarization are desirable but not essential for coherence.
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