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A light from an unknown source has a wavelength of 550nm as it passed through glass (n = 1.52). What is the period of this light?
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- Two light waves begin with identical phases from different places, propagate outward, and arrive at the same location. Each wave has amplitude A, wavelength 500nm, and speed c, but one wave must travel 600 nm farther to arrive there and sperimpose with the other wave. a) what is the frequency of the resulting disturbance? b) what is the phase difference (in radians) between the waves when they arrive?The speed of a light wave in a certain transparent material is 0.679 times its speed in vacuum, which is 3.00×108 m/s. When yellow light with a frequency of 5.17×1014 Hz passes through this material, what is its wavelength λ in nanometers?What is the frequency of a light ray of wavelength 6.50 x 10^8m?
- A spacecraft approaching a star at 4.00 E 7 m/s fires a laser at a stationary target. The beam of light has an apparent frequency of 5.04 E 16 hz. What is the wavelength of the light beam that hits the target? a 1.26 E 9 m b 5.95 E −9 m c 7.94 E −10 m d 8.24 E −9 mRed light has a frequency of 4.0 x 1014 its wavelength? Hz and a speed of 3.0 x 10° m/s. What is O 750 x 10-7 m O 750 cm O13x10° m O 1.3 10 m O 750 nm 12 mA distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from th earth at a relative speed of ug = 2.0000 × 106 m/s. Relative to the center, the tangential speed is v† = 0.4600 × 106 m/s for locations A and B, which are equidistant from the center. When the frequencies of the light coming from regions A and B are measured on earth, they are not the same and each is different from the emitted frequency of 7.405 × 10¹4 Hz. Find the measured frequency for the light from (a) region A and (b) region B. (Give your answer to 4 significant digits. Use 2.998 × 108 m/s as the speed of light.) A "T Galaxy ING Earth די. B
- A distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from the earth at a relative speed of ug = 2.30 × 106 m/s. Relative to the center, the tangential speed is V₁ = 0.310 × 106 m/s for locations A and B, which are equidistant from the center. When the frequencies of the light coming from regions A and B are measured on earth, they are not the same and each is different from the emitted frequency of 9.296 × 10¹4 Hz. Find the measured frequency for the light from (a) region A and (b) region B. (Give your answer to 4 significant digits. Use 2.998 × 108 m/s as the speed of light.) (a) Number (b) Number i 9.21E14 9.23E14 יזע Galaxy Units Hz Units Hz ING Earth די. BA distant galaxy emits light that has a wavelength of 711.2 nm. On earth, the wavelength of this light is measured to be 714.9 nm. (a) Decide whether this galaxy is approaching or receding from the earth. (b) Find the speed of the galaxy relative to the earth. (Give your answer to 4 significant digits. Use 2.998 × 108 m/s as the speed of light.) (a) The galaxy is receding (b) Number i 2.2541 x 10^6 ✓from the earth. Units m/sA distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from the earth at a relative speed of ug = 2.30 × 106 m/s. Relative to the center, the tangential speed is v₁ = 0.310 × 106 m/s for locations A and B, which are equidistant from the center. When the frequencies of the light coming from regions A and B are measured on earth, they are not the same and each is different from the emitted frequency of 9.296 × 10¹4 Hz. Find the measured frequency for the light from (a) region A and (b) region B. (Give your answer to 4 significant digits. Use 2.998 × 108 m/s as the speed of light.) (a) Number (b) Number Units Units יזע Galaxy ING Earth די. B
- A distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from the earth at a relative speed of ug = 2.00 × 106 m/s. Relative to the center, the tangential speed is V₁ = 0.440 x 106 m/s for locations A and B, which are equidistant from the center. When the frequencies of the light coming from regions A and B are measured on earth, they are not the same and each is different from the emitted frequency of 7.380 × 10¹4 Hz. Find the measured frequency for the light from (a) region A and (b) region B. (Give your answer to 4 significant digits. Use 2.998 × 108 m/s as the speed of light.) (a) Number (b) Number i Units Units A "T Galaxy ING Earth > UT BA distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding from the earth at a relative speed of ug = 1.70 × 106 m/s. Relative to the center, the tangential speed is V₁ = 0.300 × 106 m/s for locations A and B, which are equidistant from the center. When the frequencies of the light coming from regions A and B are measured on earth, they are not the same and each is different from the emitted frequency of 7.308 x 10¹4 Hz. Find the measured frequency for the light from (a) region A and (b) region B. (Give your answer to 4 significant digits. Use 2.998 × 108 m/s as the speed of light.) (a) Number i (b) Number i Units A TGalaxy Hz Units Hz ING Earth די. BThe "red shift" of radiation from a distant galaxy consists of the light Hy, known to have a wavelength of 434nm when observed in the laboratory, appearing to have a wavelength of 462nm. a. What is the speed of the galaxy in the line of sight relative to the Earth? b. Is the galaxy approaching or receding?