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A laser emits light that has a frequency of 4.69 x 10⁴ s⁻¹. What is the energy of one photon of this radiation?

User Karhgath
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Final answer:

Using the equation E = hf where h is Planck's constant (6.626 x 10⁻³⁴ J·s) and f is the frequency (4.69 x 10⁴ Hz), the energy of one photon emitted by the laser is 3.11 x 10⁻¹⁵ joules.

Step-by-step explanation:

To calculate the energy of a single photon with a given frequency, we use the formula E = hf, where E is the energy of the photon in joules (J), h is Planck's constant, and f is the frequency of the light.

In this case, the frequency of the laser light is given as 4.69 x 10⁴ Hz. Planck's constant is approximately 6.626 x 10⁻³⁴ J·s.

Therefore, the energy of one photon of this radiation can be calculated as follows:

  • E = h x f
  • E = (6.626 x 10⁻³⁴ J·s) x (4.69 x 10⁴ Hz)
  • E = 3.11 x 10⁻¹⁵ J per photon

In this computation, we find that the energy of one photon of light emitted from this laser is 3.11 x 10⁻¹⁵ joules.

User Kyle Browning
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