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Assertion: Gold nanoparticles exhibit unique optical properties due to their size and shape.
Reasoning: The interaction of light with gold nanoparticles results in the phenomenon of surface plasmon resonance.
Both the assertion and reasoning are correct, and the reasoning explains the assertion.
Both the assertion and reasoning are correct, but the reasoning does not explain the assertion.
The assertion is correct, but the reasoning is incorrect.
The assertion is incorrect.
Answers (1)
Both the assertion and reasoning are correct, and the reasoning explains the assertion. Gold nanoparticles possess unique optical properties that arise from their small size and specific shape. When light interacts with gold nanoparticles, a phenomenon called surface plasmon resonance occurs.
Surface plasmon resonance is the collective oscillation of the free electrons on the surface of the gold nanoparticles when they absorb and scatter light. This interaction between the incident light and the conduction electrons in the nanoparticles leads to the resonance of the electromagnetic field at a specific wavelength. The resonance wavelength is determined by the size, shape, and composition of the nanoparticles.
The phenomenon of surface plasmon resonance gives rise to various optical properties, such as the absorption and scattering of light, and it is highly dependent on the size and shape of the gold nanoparticles. This property has significant applications in fields like sensing, imaging, and catalysis.
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