A proton has a speed of 7.2x104 m/s.
What is the energy of a photon that has the same wavelength as the de Broglie wavelength of this proton?
(melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ∙ s)
A proton has a speed of 7.2x104 m/s. What is the energy of a photon that...
The equation for photon energy, E, is E=hcλ where h = 6.626×10−34 J⋅s (Planck's constant) and c = 2.99×108 m/s (the speed of light). What is the wavelength, λ, of a photon that has an energy of E = 3.39×10−19 J ? Express your answer numerically in meters.
Determine the energy of a photon that has a wavelength of 488 nm. The speed of light is 3.00 ´ 108 m/s and h = 6.63 ´ 10-34 J s. a. 1.63 ´ 10-15 J b. 4.08 ´ 10-19 J c. 9.71 ´ 10-23 J d. 4.08 ´ 10-28 J ANS: B
What is the de Broglie wavelength for a proton (m = 1.67× 10−27 kg) moving at a speed of 9.50 × 106 m/s? (h = 6.63 × 10−34 J⋅s)
Calculate the energy of a photon with a wavelength of 350 nm. h = 6.626 x 10^-34 J x s c = 3.00 x 10^8 m/s
What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n = 4 jumps to the final state n = 2? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ∙s, 1 eV = 1.60 × 10-19 J)
(a) Rank the following particles in order of their de Broglie wavelength, from longest wavelength to shortest wavelength. If any two particles have the same de Broglie wavelength, state this. Explain how you made your ranking. (i) A proton (mass 1.67 ´ 10–27 kg) moving north at 1.0 ´ 103 m/s (ii) A proton (mass 1.67 ´ 10–27 kg) moving west at 2.0 ´ 103 m/s (iii) An electron (mass 9.11 ´ 10–31 kg) moving south at 1.0 ´ 103...
A photon has an energy of 7.9 x 10-20 J. What is its wavelength? (Planck’s constant is h is 6.63 x 10-34 J s-1; the speed of light is 2.99 x 108 m sec-1).
Determine the energy of a photon with a wavelength of 357 nm. (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)
Determine the energy of a photon with a wavelength of 331 nm. (h = 6.626 × 10⁻³⁴ J • s and c = 3.00 × 10⁸ m/s)
1. "Ultramarine" is a deep blue-colored pigment that was once produced by grinding lapis lazuli, a blue semi-precious stone, into a powder. For most of antiquity it remained amongst the most rare and coveted dyes, until a synthetic form of ultramarine was made by chemists in 1826. The light that is most strongly absorbed by ultramarine has a wavelength of 679 nm. (a) 5 points Calculate the frequency of light that has a wavelength of 679 nm. The speed of...