lukas89 lukas89
  • 21-11-2019
  • Chemistry
contestada

Calculate the frequency of a ray of light with an energy of 5.5 x 10-19 joules

Respuesta :

Neetoo
Neetoo Neetoo
  • 25-11-2019

Answer:

f = 0.83 ×10¹⁵s⁻¹

Explanation:

Given data:

Energy of ray = 5.5 ×10⁻¹⁹ J

Frequency = ?

Solution:

Formula:

E = hf

f = E/h

J =  Kg . m².s⁻²

f = 5.5 ×10⁻¹⁹ Kg . m².s⁻² / 6.63  ×10⁻³⁴ m²Kg/s

f = 0.83 ×10¹⁵s⁻¹

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