Question: Sunlight is used in a double-slit interference experiment. The fourth-order maximum for a wavelength of 450 nm occurs at an angle of = 90o.

Sunlight is used in a double-slit interference experiment. The fourth-order maximum for a wavelength of 450 nm occurs at an angle of θ = 90o. Thus, it is on the verge of being eliminated from the pattern because 0 cannot exceed 90o in Eq. 35-14.

(a) What range of wavelengths in the visible range (400 nm to 700 nm) is not present in the third-order maxima? To eliminate all of the visible light in the fourth-order maximum,

(b) Should the slit separation be increased or decreased and

(c) What least change in separation is needed?

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a We use Eq 3514 to find d d sin0 m d 4450 nmsin90 1800 nm For the third order spectrum the ... View full answer

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