λ=c/f =>
f=c/ λ = 3•10⁸/6•10⁻⁷=5•10¹⁴ Hz
a yellow lamp emits light with a wavelength of 6.00E-7 meters. Calculate the frequency of the yellow light.
4 answers
1.5×10²³
A yellow lamp emits light with a wavelength of 6.00*10-7m.How many such photons are required to produce 10.0 joules worth of photons?
The energy of a photon can be calculated using the formula E=hf, where h is Planck's constant (6.626 x 10^-34 J.s) and f is the frequency of the photon.
To find the frequency of the yellow light, we can use the formula c=fλ, where c is the speed of light (3.00 x 10^8 m/s).
c = fλ => f = c/λ = (3.00 x 10^8 m/s)/(6.00 x 10^-7 m) = 5.00 x 10^14 Hz
Now we can calculate the energy of one photon using E = hf = (6.626 x 10^-34 J.s)(5.00 x 10^14 Hz) = 3.31 x 10^-19 J.
To produce 10.0 joules worth of photons, we need to calculate the number of photons required:
10.0 J / (3.31 x 10^-19 J/photon) = 3.02 x 10^19 photons
Therefore, we need 3.02 x 10^19 photons to produce 10.0 joules worth of photons from a yellow lamp.
To find the frequency of the yellow light, we can use the formula c=fλ, where c is the speed of light (3.00 x 10^8 m/s).
c = fλ => f = c/λ = (3.00 x 10^8 m/s)/(6.00 x 10^-7 m) = 5.00 x 10^14 Hz
Now we can calculate the energy of one photon using E = hf = (6.626 x 10^-34 J.s)(5.00 x 10^14 Hz) = 3.31 x 10^-19 J.
To produce 10.0 joules worth of photons, we need to calculate the number of photons required:
10.0 J / (3.31 x 10^-19 J/photon) = 3.02 x 10^19 photons
Therefore, we need 3.02 x 10^19 photons to produce 10.0 joules worth of photons from a yellow lamp.
3 answers