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- What is the wavelength of an electron moving at 3.00% of the speed of light?1. An ultraviolet photon has a frequency equal to 2.41 x 1015 Hz. a. What is its wavelength? b. What is its energy ?3) What is the wavelength of a photon in nanometers, having energy of 2.00 eV? (e-3.00 - 10 m/s, h = 6.626 x 10-34 J-s, 1 eV = 1.60 × 10-19 J) s)
- A. What is the energy of a 194.0MHz radio-frequency photon? B. What is the energy of a visible-light photon with a wavelength of 611.0nm? C. What is the energy of an x-ray photon with a wavelength of 0.236nm?1. You have orange light with a wavelength of 615 nm. a. What is the frequency of this light? b. What is the energy of one photon of this light?25. A photon of green light has a wavelength of 520 nm. Calculate the energy of this photon in eV. (Answer: 2.38 eV)
- 14. A photon has an energy of 3.2 eV. What is the frequency of the photon?5. The frequency of violet light is 7.5 x 1014 Hz. How much energy does a photon of violet light carry? (h = 6.626 x 1034 J-s; 1 eV = 1.60 x 1019 J) 3.11 ev 2.73 x 102 ev 0.148 ev 3.14 x 103 ev16. 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 nm
- 13. The frequency of a photon having energy 100 eV is (Take h = 6.62 × 10-34 J s; 1 eV = 1.6 × 10−¹⁹ J) (a) 2.417 x 10-16 Hz (c) 2.417 x 10¹7 Hz (b) 2.417 x 10¹6 Hz (d) 10.54× 10¹7 Hz1. Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.6 10-19 J. (a) a photon having a frequency of 2.44 10-3 Hz _________ eV 2.(a) What is the energy in joules of an x-ray photon with wavelength 6.33 10-9 m? ________ J (b) Convert the energy to electron volts. ______ eV PLEASE ANSWER BOTH !!!!1. An incoming light beam has frequency 9.7 x 1014 Hz. (Use h=6.626 x 10-34 J.s) a.) How much energy in Joules does it have? b.) If the photons of this light beam are absorbed by a free electron, how much kinetic energy and speed will the free electron have?
