3.) metal has a threshold frequency of 5.85 x 1016 s-1, and after exposure to electromagnetic radiation an electron is emitted with a velocity of 6.95 x 105 m/s. What is the wavelength of the electromagnetic radiation used to eject the electron? Mass of an electron is 9.109 x 10-31 kg
3.) metal has a threshold frequency of 5.85 x 1016 s-1, and after exposure to electromagnetic...
1. Calculate the Work Function of a metal that has a threshold frequency of 9.54 x 1014 s-1. answer: 63.3*10^(-20)J 2. What is the wavelength of this light in nm? answer: 314nm 3. What would be the Kinetic Energy of an ejected photoelectron if 3.26 x 1015 s-1 light struck (hit) that same metal? answer: 1.53*10^(-18)J 4. What would be the velocity and De Broglie Wavelength of ejected photoelectron? answer: 1.83*10^(6)m/s 5.What is the wavelength of light (in nm) of...
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.04×1014 s−1 when it is exposed to visible light of wavelength 4.88×10−7 m
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.21×1014 s−1 when it is exposed to visible light of wavelength 4.75×10−7 m .
The binding energy for mercury is 435 kJ/mol of photons. (a) Calculate the threshold frequency. (b) Calculate the maximum velocity of the electrons ejected when light of wavelength 200 nm strikes the mercury. (KE = ½ mv2 , mass of electron = 9.109 x 10-31 kg)
1. Find the velocity of an electron emitted by a metal whose threshold frequency is 2.18×1014 s−1 when it is exposed to visible light of wavelength 4.80×10−7 m . 2. Water is exposed to infrared radiation of wavelength 2.9×10−4 cm . Assume that all the radiation is absorbed and converted to heat. How many photons will be required to raise the temperature of 2.0 g of water by 2.2 K ? 3. Reset the PhET simulation (using the button in...
Q7 Electromagnetic radiation is to be used for electron emission on sodium. Determine: a) the threshold frequency and wavelength for sodium? b) the stopping potential for sodium using 400 nm violet light? Take work function for sodium as 3.78 x 10"J
What is the wavelength of electromagnetic radiation which has a frequency of 7.215 x 10-6 s? (c = 2.998 x 108 m/s)?
What is the threshold frequency (in s−1) for indium metal if a photon with frequency 1.10 ✕ 1015 s−1 ejects an electron with 7.26 ✕ 10−20 J kinetic energy?
22) — 22) Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10-3 m. Wavelength 10-3 10-1 10 103 105 107 109 1011 1013 (nm) Frequency 1020 1018 1016 1014 1012 1010 108 106 104 X rays Ultra- viloet Visible Infrared Microwave Radio waves Gamma Type of rays radiation A) X rays B) Ultraviolet C) Infrared D) Gamma rays E) Microwave
The threshold frequency for an electron of a particular metal is 2.11 * 10^15 s^1. What is the energy associated with the ejection of this electron?