# Physics Problems

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Physics assignment file attached.

4. –/1 pointsOSColPhys1 27.3.018. Figure 25.53 shows a double slit located a distance x from a screen, with the distance from the center of the screen given by y. When the distance d between the slits is relatively large, there will be numerous bright spots, called fringes. It can be shown that, for small angles (where sin θ   θ, with θ in radians), the distance between fringes is given by Δy = xλ/d. Using this result, find the wavelength of light that produces fringes 9.00 mm apart on a screen 2.00 m from double slits separated by 0.140 mm.   nm Figure 25.53 Additional Materials Reading 5. –/1 pointsOSColPhys1 27.4.021. A diffraction grating has 1960 lines per centimeter. At what angle will the first­order maximum be for 515 nm wavelength light?   ° Additional Materials Reading 6. –/2 pointsOSColPhys1 27.5.043. (a) At what angle is the first minimum for 525 nm light falling on a single slit of width 1.32 µm?   °  (b) Will there be a second minimum? no yes     Additional Materials Reading 7. –/2 pointsOSColPhys1 27.5.044. (a) Calculate the angle at which a 1.90 µm wide slit produces its first minimum for 410 nm violet light. Enter your result to the nearest 0.1°.   °  (b) Where is the first minimum for 715 nm red light?   ° Additional Materials Reading

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