Respuesta :

Neetoo

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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