Determine the frequency of ultra-violet light that has an energy of 2.39×10−18 J
Question
Determine the frequency of ultra-violet light that has an energy of 2.39×10−18 J
Solution
To determine the frequency of the ultra-violet light, we can use the formula of the energy of a photon, which is given by:
E = h * f
where: E is the energy of the photon, h is Planck's constant (6.62607015 × 10^-34 m^2 kg / s), f is the frequency of the light.
We can rearrange the formula to solve for f:
f = E / h
Substituting the given values:
f = 2.39×10^-18 J / 6.62607015 × 10^-34 m^2 kg / s
After performing the division, we get:
f ≈ 3.61 × 10^15 Hz
So, the frequency of the ultra-violet light that has an energy of 2.39×10^-18 J is approximately 3.61 × 10^15 Hz.
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