Question:
The optical elements are matched with their optical phenomenon. The FALSE match is
The optical elements are matched with their optical phenomenon. The FALSE match is
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Interference usually involves thin films (like oil on water), double slits (Young's experiment), or diffraction gratings.
Mirrors and lenses are primarily associated with reflection and refraction.
Mirrors and lenses are primarily associated with reflection and refraction.
Updated On: Apr 29, 2026
- Glass prism : Dispersion
- Optical fibre : Total internal reflection
- Thin plastic sheets : Polarization
- Concave mirror : Interference
- Glass slab : Refraction
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Optical phenomena describe how light interacts with different materials and surfaces based on the principles of wave and ray optics.
Step 3: Detailed Explanation:
Let us evaluate each pair:
1. Optical fibre: Works on the principle of Total Internal Reflection (TIR) to transmit light signals over long distances. (True)
2. Thin plastic sheets: Certain plastic sheets (polaroids) are used for the Polarization of light by restricting vibrations to a single plane. (True)
3. Glass prism: When white light passes through a prism, it splits into its constituent colors, a phenomenon known as Dispersion. (True)
4. Glass slab: When light enters a glass slab, it bends at the interface, which is known as Refraction. (True)
5. Concave mirror: The primary phenomenon associated with a concave mirror is Reflection. Interference is a wave phenomenon requiring two coherent sources overlapping, which is not the basic function of a mirror. (False)
Step 4: Final Answer:
The false match is Concave mirror : Interference.
Optical phenomena describe how light interacts with different materials and surfaces based on the principles of wave and ray optics.
Step 3: Detailed Explanation:
Let us evaluate each pair:
1. Optical fibre: Works on the principle of Total Internal Reflection (TIR) to transmit light signals over long distances. (True)
2. Thin plastic sheets: Certain plastic sheets (polaroids) are used for the Polarization of light by restricting vibrations to a single plane. (True)
3. Glass prism: When white light passes through a prism, it splits into its constituent colors, a phenomenon known as Dispersion. (True)
4. Glass slab: When light enters a glass slab, it bends at the interface, which is known as Refraction. (True)
5. Concave mirror: The primary phenomenon associated with a concave mirror is Reflection. Interference is a wave phenomenon requiring two coherent sources overlapping, which is not the basic function of a mirror. (False)
Step 4: Final Answer:
The false match is Concave mirror : Interference.
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