What is the energy of a photon that emits a light of frequency 7.21 𝑥x 1014 Hz?A.2.76 𝑥x 10-19 JB.4.16 𝑥x 10-19 JC.4.78 𝑥x 10-19 JD.1.09 𝑥x 10-19 J
Question
What is the energy of a photon that emits a light of frequency 7.21 𝑥 10^14 Hz?
A. 2.76 𝑥 10^{-19} J
B. 4.16 𝑥 10^{-19} J
C. 4.78 𝑥 10^{-19} J
D. 1.09 𝑥 10^{-19} J
Solution
The energy of a photon can be calculated using the formula:
E = h * v
where: E is the energy of the photon, h is Planck's constant (6.63 x 10^-34 Joule seconds), and v is the frequency of the light.
Given that the frequency (v) is 7.21 x 10^14 Hz, we can substitute these values into the formula:
E = (6.63 x 10^-34 J*s) * (7.21 x 10^14 Hz)
E = 4.78 x 10^-19 J
So, the energy of the photon that emits a light of frequency 7.21 x 10^14 Hz is 4.78 x 10^-19 J. Therefore, the correct answer is C. 4.78 x 10^-19 J.
Similar Questions
What is the energy of a photon that emits a light of frequency 4.47 𝑥x 1014 Hz?A.2.96 𝑥x 10-19 JB.6.71 𝑥x 10-19 JC.1.34 𝑥x 10-19 JD.6.75 𝑥x 10-19 J
What is the frequency of a photon with an energy of 3.38 𝑥x 10-19 J?A.1.96 𝑥x 1014 HzB.5.10 𝑥x 1014 HzC.4.47 𝑥x 1014 HzD.6.71 𝑥x 1014 Hz
Calculate the energy of one mole of photon of radiation of:a) Frequency 4.6 GHzb) Wave numbers 37,000 cm-1c) What is the energy of one mole of these photons
What is the wavelength of a photon with an energy of 3.38 𝑥x 10-19 J?A.460 nmB.416 nmC.588 nmD.510 nm
Calculate the energy of one mole of photon of radiation of:a) Frequency 4.6 GHz
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