3-47. Data for stopping potential versus wavelength for the photoelectric effect using sodium are λ nm 200 300 400 500 600 V₁ V 4.20 2.06 1.05 0.41 0.03
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Q: Task 3: Quantum Theory h = 6.63 × 10-34 Js; c = 3.00 x 108 m/s; me9.11 x 10-31 kg 1. A potassium…
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- Calculate the de Broglie wavelength of an electron moving with 1/3rd of the speed of light in vacuum. (Neglect relativistic effect) (Planck's constant : h = 6.63 × 10-34 Js, Mass of electrons : m = 9.11 × 10-28 g) %3D3. Light of wavelength 500. nm is incident on a metallic surface. If the stopping potential for the photoelectric effect is 0.450 V, find (a) the maximum kinetic energy of the emitted electrons, (b) the work function, and (c) the cutoff wavelength. 1142 If frequency of light used in photoelectric effect is 4.5x10 ^14 Hz and K.E of ejected electrons is 1.20 e V then work function of the metal will be * 6.6 e V 1.90 e V 0.66 e V O 2.54 e V
- ASS 3. When light with a wavelength of 222 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.16 × 10-¹⁹ J. Determine the wavelength of light that should be used to quadruple the maximum kinetic energy of the electrons ejected from this surface. nm fo 0 ssf60€ ssf606 5 09588 09 ssf60 ssf605. What are the kinetic energy and the speed of an electron ejected from a sodium surface whose work function is W0 = 2.28 eV when illuminated by light of wavelength (a) 410 nm and (b) 550 nm?