The wavelengths of visible light range from approximately 400 nanometers to 750 nanometers. a. Convert the 750nm to meters. b. Convert the 400nm to meters. c. Calculate the frequency of red light. d. Calculate the frequency of violet light.
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a. Convert the 750nm to meters.
b. Convert the 400nm to meters.
c. Calculate the frequency of red light.
d. Calculate the
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- 16. Light has a frequency of 5.45 1014 hertz [Note: Hz is also s-1]. What is its wavelength? Use the speed of light = 3.00 108 m/s. a. 1.82 106 nm b. 1.82 10-3 nm c. 1.82 105 nm d. 5.50 10-7 nm e. 550 nmWhich of the following are characteristic of ultraviolet radiation from a star? a. It will not penetrate Earth’s atmosphere and reach the ground. b. It has a wavelength that is longer than the visible light emitted by the star. c. It has a wavelength that is shorter than the X rays emitted by the star. d. a and b e. b and c35. Identify which list of characteristics is true for the light wave shown in the sketch below. origin λ = 750 nm A. UV light with a frequency of 4.0x10¹4 Hz B. Red light with an amplitude of about 500 nm C. Infrared light with a frequency of 4.0x10¹4 Hz D. Infrared light with a frequency of 2.2x10¹4 Hz E. UV light with cy of 2.2x10¹4 Hz
- Space-based telescopes are needed to observe electromagnetic energy that cannot reach the surface of Earth. The regions of the electromagnetic energy spectrum that do reach Earth’s surface pass through what are referred to as a. atmospheric windows. b. atmospheric portals. c. electromagnetic openings. d. extreme wavelengths. e. visible and radio waves.8. What is the frequency of an EM wave with a wavelength of 3,066 m? 9. Determine the wavelength produced by an EM wave whose frequency is 9.3 x 10^6 Hz 10. Convert 487 nm into meters. Calculate the frequency of the light and determine what type of Em wave is it?2. The nearest star to earth is the Proxima Centauri. It is approximately 4.2 lightyears away from our planet. a) Express this distance in km and in the astronomical unit. b) Calculate the time that it will take for this star's light to reach earth. 3. Find the weights of gelatin and butter contained in a cubic box with a side dimension of 0.03 em. Gelatin has a density of 79 lb/ft³ while butter has a density of 53 lb/f³.
- 6.a. A light wave has a wavelength of 1,310 nm. What's the frequency of this wave?A. 229 THzB. 914 THzC. 371 THzD. 436 THz 6.b. A light wave has a frequency of 358 THz. What's the wavelength of this wave?A. 917 nmB. 556 nmC. 838 nmD. 1,018 nm5.How does a microwave differ from a gamma ray? A.Gamma rays have lower frequencies than microwaves because they have longer wavelengths. B.Microwaves have lower frequencies than gamma rays because they have shorter wavelengths. C.Microwaves have lower frequencies than gamma rays because they have longer wavelengths. D.Gamma rays have lower frequencies than microwaves because they have shorter wavelengths.1. Which of the following has the highest frequency? a. infrared b. microwaves c. ultraviolet d. visible light 2. Which of the following is NOT true about visible light? a. Visible light has a higher frequency than infrared. b. Visible light has a higher frequency than radio waves. c. Visible light has a longer wavelength than infrared ultraviolet d. Visible light has a longer wavelength than infrared microwaves 3. Which of the following has the shortest wavelength? a. infrared b. microwaves c. radio waves d. X-rays 4. Which is NOT true about radio waves? a. Radio waves have a longer wavelength than infrared. b. Radio waves have a shorter frequency than microwaves c. Radio waves have the lowest frequency and longest wavelength d. Radio waves have the lowest frequency and shortest wavelength 5. Which of the following has the lowest frequency? a. gamma rays b. ultraviolet waves c. visible light d. X-rays 6. Which of the following is true about electromagnetic waves? a. They have the…
- 5. An EM wave has a frequency of 9.77 x 1014 Hz. What is this wavelength, and how should we classify it in terms of its place in the electromagnetic spectrum? 6. How long does it take light from the moon to reach us? It is 3.8 x 10³ m away.Comparing two different types of electromagnetic waves, infrared and ultraviolet, we can say thatA. Infrared has a longer wavelength and higher frequency than ultraviolet.B. Infrared has a shorter wavelength and higher frequency than ultraviolet.C. Infrared has a longer wavelength and lower frequency than ultraviolet.D. Infrared has a shorter wavelength and lower frequency than ultraviolet.2. The nearest star to earth is the Proxima Centauri. It is approximately 4.2 lightyears away from our planet. a) Express this distance in km and in the astronomical unit. b) Calculate the time that it will take for this star's light to reach earth. 3. Find the weights of gelatin and butter contained in a cubic box with a side dimension of 0.03 cm. Gelatin has a density of 79 Ib/ft² while butter has a density of 53 lb/ft’.