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The maximum distance between Jupiter and Earth is about 968 million km. How long will a photon of light take to travel from Jupiter to Earth?
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- The energy of a photon is given by 11 eV. What is the energy of the photon in the unit of J? Answer the value that goes into the blank: The energy of the photon is _____ × 10-17 JWhat is the energy of a photon with a frequency of 7.4*10^15 Hz? An electron emits a photon by undergoing an energy transition of 2.84*10^-19 J. What is the wavelength of this photon.The energy of a photon is given by 6.7 × 10-15 J. What is the energy of the photon in the unit of eV?
- Visible light falls into wavelength ranges of 400-700 nm, for which 1 m=1×109 nm The energy and wavelength of light are related by the equationE=hcλ where E is energy in Joules, h is Planck's constant ( 6.626×10−34 J-s ), c is the speed of light ( 2.998×108 m/s), and λ is the wavelength in m. If a visible light photon has a wavelength of 632.3 nm, what is the energy of the photon (in J)?for any wave, the speed equals the wavelength times the frequency. If a photon of visible light has a wavelength of 500 nm (5 x 10-7 m) and a frequency of 6.0 x 1014 Hz, what is the speed of light (in meters per second, scientific notation)?The momentum of a photon having energy 10-17J is ____________ a) 1.11 X 10-26 Kg m/s b) 2.22 X 10-26 Kg m/s c) 3.33 X 10-26 Kg m/s d) 4.44 X 10-26 Kg m/s
- (a) The distance to a star is approximately 5.50 × 10¹8 m. If this star were to burn out today, in how many years would we see it disappear? 581.35 years (b) How long does it take sunlight to reach Earth? 8.33 minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 x 105 km.) X 1.28 Your response differs from the correct answer by more than 10%. Double check your calculations. SThe mass of a photon with wavelength 3.6 Å is _____________ a) 3.139 X 10-33 kg b) 4.139 X 10-33 kg c) 5.139 X 10-33 kg d) 6.139 X 10-33 kg(a) The distance to a star is approximately 4.97 × 10¹8 m. If this star were to burn out today, in how many years would we see it disappear? years (b) How long does it take sunlight to reach Earth? minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 x 105 km.) S
- What is the energy of light having a frequency of (8.61x10^14)? Answer to 3 significant figures in scientific notation. Unit is case sensitive. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer X10 units(a) The distance to a star is approximately 6.74 ✕ 1018 m. If this star were to burn out today, in how many years would we see it disappear? ___ years(b) How long does it take sunlight to reach Earth? ____ minutes(c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 ✕ 105 km.)______ s(a) How long in seconds does it take a radio signal to travel 180 km from a transmitter to a receiving antenna? (b) We see a full Moon by reflected sunlight. How much earlier did the light that enters our eye leave the Sun? The Earth - Moon and Earth - Sun distances are 3.8x105 km and 1.5 x 108 km, respectively. (c) What is the round-trip travel time in seconds for light between Earth and a spaceship at a 9.0 x 106 km distance from Earth? (d) Suppose astronomers observe a supernova about 7600 light-years (ly) distant. How long ago in years did the explosion actually occur? (a) Number Units (b) Number Units (c) Number Units (d) Number Units