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please help answer correctly A diffraction grating has 200 lines per mm. If light of frequency 3x 1015 Hz is sent through this grating, at

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A diffraction grating has 200 lines per mm. If light of frequency 3x 1015 Hz is sent through this grating, at what angle does the first order maximum occur? O 6.33 O 10.420 1.150 O 4.210 Question 10 1 pts In a two-slit experiment, monochromatic coherent light of wavelength 400 nm passes through a pair of slits separated by 1.3 x 10-m. At what angle away from the centerline does the first bright fringe, or maximum, occur? O 81.60 O 3.40 O 23.20 O 17.90A single slit forms a diffraction pattern with monochromatic light. The third minimum of the pattern occurs at an angle of 220 from the central maximum. The angle at which the sixth minimum of the pattern occurs is closest to: O 48.7 O 11.20 O 5.20 O 89.90 Question 2 1 pts A single slit forms a diffraction pattern, with the first minimum at an angle of 25 from central maximum. Monochromatic light of 490 nm wavelength is used. The width of the slit is closest to: O 5.92 x 10" m O 2.74 x 106 m O 7.11 x 106 m O 1.16 x 10 m Question 3 1 pts At most, how many bright fringes can be formed on one side of the central bright fringe (not counting the central bright fringe) when light of 500 nm falls on a double slit whose spacing is 4.12 um? 07 0 5 0 3 O 11 Question 4 1 pts A 24 mm wide diffraction grating has rulings of 600 lines per mm. Light is incident normally to the grating. The longest wavelength that forms an intensity minimum in the third order is closest to: O 3.34 x 10"4 m O 8.43 x 104 m O 6.92 x 10 4 m O 1.17 x 10"4 mTwo radio antennas are 300 m apart on a north-so uth line. The turn antennas radiate in phase at a frequency of 3.1 MHz. All radio measurements are made far from the antennas. The smallest angle {excluding the central maximum). measured north of east from the antennas. at which destructive interference of the two radio waves occurs. is closest to: '9".2\" 13.3\" 353 62. 1 Question 6 1 pts If the diameter ofa radar dish is doubled, what happens to its resolving power? The resolving power is cut in half The resolving power is quadrupled The resolving power is unchanged The resolving power is doubled In a two-slit experiment. the slit separation is 2.5 x 10'5 m. The interference pattern is created on a screen that is 1.65 m away from the slits. If the 4th bright fringe on the screen is 3 cm away' from the central fringe, what is the wavelength of the light? 552 nm 623 nm 11?nm 303 nm Question 8 1 pts Coherent light of wavelength 500 nm passes through a pair of thin slits that are 2.6 x 10'5 m apart. At what angle awayr from the centerline does the second bright fringe occur? 8.9D 11.3'1 T6.1 0.3 5

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