What is the energy of a photon of wavelength 450 nm?

⇒E=hcλ=6.62×10−34×3×108450×10−9=4.4×10−19 J.

What is the energy of a photon of wavelength 400 nm?

3.1 eV
From the previous problem, the energy of a single 400 nm photon is 3.1 eV. One must therefore reduce the effective work function to 3.1 eV to allow the light to liberate an electron.

What is the energy of light with a wavelength of 468 nm?

and the speed of light is: c=3×108 m/s c = 3 × 10 8 m/s . With these data, we can compute the energy associated with each photon as: E=hcλ=6.6×10−34 J.s×3×108 m/s468×10−9 m=4.23×10−19 J E = h c λ = 6.6 × 10 − 34 J.s × 3 × 10 8 m/s 468 × 10 − 9 m = 4.23 × 10 − 19 J .

What is the frequency of light with a wavelength of 455 nm?

What is the frequency of light if it known to have a wavelength of 455 nm? JE? 15 = 6.59×104 Hz] .

What will be the energy of single photon when electromagnetic radiation have 450 nm wavelength?

4×10−19J.

What is the energy of photon of wavelength 5000 Angstrom?

oA. is approximately 2.5eV.

What is the energy in joules of a single photon with a wavelength of 400 nm?

=1.29077⋅10−18 Joules.

What is the number of photon of light with wavelength 400 nm that provide 1 Joule of energy?

What is the number of photons of light with wavelength 4000 pm which provide 1 Joule of energy? ∴1J is energy of photons =14.969×10-17=2.012×1016 photons.

What is the energy of a photon of light with a wavelength of 486 nm?

2 Answers. The answer is 3.54×10−19 J .

What is the energy of a 100 nm photon?

12.4 eV
E=hf=hcλ E = h f = h c λ . E=hf=hcλ=1240 eV ⋅ nm100 nm=12.4 eV E = h f = h c λ = 1240 eV ⋅ nm 100 nm = 12.4 eV .

What is the energy of one mole of photons with 540 nm?

The energy of 1 mole of the photon is 3.68 × 10–19 J.

What is the energy of one photon of electromagnetic radiation with a wavelength of 420 nm?

4.73
– Substitute all the values in the above formula to get the energy of the photon. E=hcλ⇒E=6.023×1023×3×108420⇒E=4.73×10. – The energy of the electromagnetic radiation with a wavelength of 420 nm is 4.73×10−19 J or 2.95 ev (electron volt) .

What is the formula for the energy of a photon?

E = h * c / λ = h * f, where. E is the energy of a photon. h is the Planck constant, c is the speed of light, λ is the wavelength of a photon,

What is the wavelength of a photon?

Now, notice that you are given the wavelength of the photon, λ. As you know, frequency and wavelength have an inverse relationship described by the equation Another important thing to notice here is that the wavelength of the photon is given in nanometers, nm.

What is the energy of a single photon of green light?

The energy of a single photon of green light of a wavelength of 520 nm has an energy of 2.38 eV. You can use the photon energy calculator to further explore the relationship between the photon energy and its frequency or wavelength.

How does Planck’s equation relate the frequency of a photon?

The Planck’s equation relates the frequency of a photon to its energy through a Planck constant h equal to The Planck constant is in the units (energy)* (time) and you can think of it as a conversion factor from energies to frequencies. f is the frequency of a photon.