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Class 12 Physics Practice Test: Wave Optics - Diffraction
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Avg score: 56% • Most missed: “State the essential condition for diffraction of light to occur.”
Class 12 Physics Practice Test: Wave Optics - Diffraction
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8 Questions

1. What should be the order of the size of an obstacle or aperture for diffraction light?
2. Single slit diffraction is completely immersed in water without changing any other parameter. How is the width of the central maximum affected?
3. Determine the half angular width of the central maximum, if a wavelength of 1000 nm is observed when diffraction occurs from a single slit of 2 μm width.
4. A small circular disc is placed in the path of light from a distant source. Identify the nature of the fringe produced.
5. What will be the linear width of the central maximum on a screen that is kept 5 m away from the slit, if a light of wavelength 800 nm strikes a slit of 5 mm width.
6. State the essential condition for diffraction of light to occur.
7. What is the cause of diffraction?
8. Diffraction is common in light waves.

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