2.8x10-19 J
E = hν, and ν = c/λ. λ is wavelength, c is the speed of light (3.0 x 108 meters/second), E is energy, and h is 6.626 x 10-34. 3.0 x 108/715 = 419580.42. 419580.42 x 6.626 x 10-34 = 2.78 x 10-28 joules.
I assume you want energy per kilojoules a mole since the wavelength is in nanometers.
Energy =1.196 X 10^5 nm*kj/mol/wavelength
E = 1.196 X 10^5 nm*kj/mol/715 nm
= 167 kilojoules/mol of photons
If you just wanted Joules, then this way is recommended.
( change 715 nm to 7.15 X 10^-7 meters )
Energy ( in Joules ) = Planck's constant * speed of light/wavelength in meters
E = ( 6.626 X 10^-34 J*s)(2.998 X 10^8 m/s)/( 7.15 X 10^-7 meters)
= 2.78 X 10^-19 Joules
575nm = 575 x 10-9 m C= λv 3.00 x 108 m/s = 575 x 10-9 m (v) v= 5.22 x 1014 Hz E= hv E= 6.626 x 10-34 J (sec) x (5.22 x 1014 1/sec) E= 3.46 x 10-19 J
E=hf
E=(6.63x10-34) x (700x10-9)
E= 4.61x10-40Hz
Energy = hf = hc/wavelength
Energy = 1.986×10 e −25 / 518 x 10 e -9
= 3.834 x 10 e - 37 J
The energy is E=hc/w= 1.25uevm/715m = 1.748nev.
2.8x 10(to the negative 19)J
2.96 x 10-19 J
2.88x10^-28 J
3 x 10-19 J
First get the wavelength in meters by multiplying Plancks constant (in units of J-sec) times the speed of light (in m/sec) and divided by the energy. Then change to nanometers by multiplying by 1 billion.
Each photon has an energy of 4.9*10^-19 J.
Short wave radiation. You might separate it to X-ray or Ultra-Violet but basically, any wavelength shorter than 400 nm had degree of harm. The shorter wavelength the more energy/photon and higher risk of causing DNA damage and resulting to cancer.
If a wavelength of light emitted from a particular red diode laser is 651 nm, its wavelength would be equivalent to 0.000000651 meters.
Visible 'light' ranges from roughly 380 to 750 nanometers (billionths of a meter). It can vary somewhat for different individuals' eyes. If electromagnetic radiation has a wavelength longer than about 750nm or shorter than about 380nm, you may still call it 'light' if you want, but the human eye doesn't respond to it.
3.84 x 10-19 joules.
The wavelength is 436 nm.
Photon energy is proportional to frequency ==> inversely proportional to wavelength.3 times the energy ==> 1/3 times the wavelength = 779/3 = 2592/3 nm
Twice the energy means twice the frequency, and therefore half the wavelength.
The energy of the photon is 3,1631.e-19 joule.
89
Energy per photon is proportional to frequency. That tells us that it's alsoinversely proportional to wavelength.So if Photon-A has wavelength of 400-nm, then wavelength of Photon-Bwith twice as much energy is 200-nm .
610 nm
The wavelength is 610 nm.
The wavelength is 435,62 nm.
4.44 10-19 j
4.7*10^-19 j