Which of the following is a TRUE statement about light? Red light travels slower than ultraviolet light. O The energy of light increases with its wavelength. Infrared light has a longer wavelength that ultraviolet light. Light of all frequencies has the same energy. O The energy of light decreases as its frequency increases.
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- Consider six proposed properties of electromagnetic radiation: wave speeds of 3.00 x 10° km/s and 3.00 × 10³m/s, wavelengths of 423 nm and 0.281 nm, and frequencies of 2.03 × 1018 Hz and 7.49 x 1014 Hz. Place these according to whether they apply only to the X-ray band, only to the visible light band, to both bands, or to neither band. X-ray band only Visible light band only Both bands Neither band Answer Bank frequency of 2.03 × 1018 Hz frequency of 7.49 × 1014 Hz wavelength of 0.281 nm wavelength of 423 nm speed of 3.00 x 10® km/s speed of 3.00 × 10³ m/sWhat is the energy (in Joules, J) and color associated with 532-nm light? Energy and Type of EM Radiation A) 3.74×10-19 J Red (Visible, close to IR range) B) 3.74×10-19 J Violet (Visible, close to UV range) C) 3.74×10-19 J Green (Visible, middle of visible range) D) 3.74×10-28 J Colorless (Radio) E) 2.68×10+18 J Colorless (Gamma)What physical quantity is the same for X-rays of wavelength 10-10 m, red light of wavelength 6800 Å and radiowaves of wavelength 500m?
- Use the following information to answer the next question A farmer uses a sunscreen that contains para-amino benzoic acid (PABA). Absorption Spectrum of PABA Absorption by PÁBA 220 230 240 250 260 270 280 290 300 310 320 330 340 Wavelength (nm) 26. The PABA in the sunscreen absorbs radiation that has a frequency of approximately O 8.0x1012 Hz O80 Hz O 8.8x10-16 Hz 1.1x1015 Hz Your reasoning: Written Response Relative degree of absorptionAM 100m Electromagnetic Spectrum FM TV Radio waves 1m Radar 1cm TV Remote Infrared 0.01cm Light Bulb 1000nm O Lightning has more energy than the radio because gamma rays have a longer wavelength. Ⓒ Lightning has less energy than the radio because gamma rays have a shorter wavelength. O Lightning has more energy than the radio because gamma rays have a shorter wavelength. O Lightning has less energy than the radio because gamma rays have a longer wavelength. Sun Ultraviolet 10nm X-ray machine X-rays Building Size Lightning contains gamma rays. Based on the position of gamma rays in the electromagnetic spectrum, does lightning have more or less energy than a radio? Radioctive Elements wwwwwwwwww Gamma rays VISIBLE SPECTRUM 0.01nm 0.0001nm Atom SizeAn x-ray device emits EM radiation of frequency 4.2 x 1018 Hz. Calculate the wavelength of this radiation.(Give your answer in meters but don't include the units.)
- Visible light is O a large portion of the full electromagnetic spectrum. O the only phenomenon presented during the lectures on Light. O a small portion of the full electromagnetic spectrum. O a portion of the electromagnetic spectrum that ranges from microwaves to ultraviolet light ... .. ..*** ...An ultraviolet light source produces photons with 8.5 eV of energy. What is the wavelength of thelight?What is the frequency of an ultraviolet photon with wavelength 91 nm?
- 4. What is the intensity of an electromagnetic wave with a peak electric field strength of 110 V/m? This is not and will not be gradedIf an EM wave has an electric field of 5E5 N/C, what is the total energy density?Which of the ff. absorption maxima is in the visible range of the electromagnetic spectrum? a.) 510 nm b.) 240 nm c.) 800 nm