Certain spherical metallic nanoparticles are dispersed in ethanol, whose refractive index at room temperature (20 ° C) is 1.36. At room temperature, the nanoparticles show a plasma resonance peak centered at 530nm. If the index of refraction of ethanl varies with temperature at a rate of -400x10-6/°C, calculate the position of the peak of plasmon resonance at a temperature of 70 ° C (boiling temperature of ethanol).

Certain spherical metallic nanoparticles are dispersed in ethanol, whose refractive index at room temperature (20 ° C) is 1.36. At room temperature, the nanoparticles show a plasma resonance peak centered at 530nm. If the index of refraction of ethanl varies with temperature at a rate of -400x10-6/°C, calculate the position of the peak of plasmon resonance at a temperature of 70 ° C (boiling temperature of ethanol).

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