Question

The table below relates the peak wavelength of the optical absorption of gold nanoparticles to the radius r of the particle. Plot the wavelength versus the square of the radius of the particle, and write an equation =f(r) that approxi- mately fits the points on the graph. Radius, nm Wavelength, nm 520 550 600 20 80 625 120 140 If you wish to make a stained-glass window having two panels, one red and one green, using gold nanparticles, what size particles would you put in each panel? One crystalline form of boron consists of a hexagonal lattice of boron icosahe- ura (illustrated in Fig. 11.16). Given the nearest-neighbor separation of the

Answer 1

square of radius 520 530 540 550 560 580 590 600 600 610 620 W 570 wave length Linear Regression R2:0.9975, aR2:0.9963, P-0.001235, SE:517, F:808, AIC:62.56, BIC:61.34, DWS:3.4. DoF:2, AlCc:74.56 m=178.615,C=-92280.33 y = 178.615x-92280.33 Fit Method

Since Red ware length - (620 – 750nm, Green ware length (495-570) If & wish to make a stained glass window having two paneli, one red and one green than using gold nonoparticles, than particle in each pannel is Colour Reet gold particle size (Radius) Red 140 nm Cmeen 2onm

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