Each photon has an energy of 4.9*10^-19 J.
The energy is 4,9018.e-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.
2.8x10-19 JE = 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.
It will be a dark red solution- like liquid bromine
The color of the wavelength lambda = 685 nanometers is "deep red". The wavelength lambda = 685 nanometers equals the frequency f = 503,852,870,588,235 Hz. 1 nanometer = 1×10−9 meter. 685 nm = 0.000000685 meters. Scroll down to related links and look at "Radio and light waves in a vacuum".
Red light.650 nm Orange light. 590 nm Yellow light. 570 nm Green light. 510 nm Blue light. 475 nm Indigo light. 445 nm Violet light. 400 nm Note: Those are the only colors in the visible spectrum. Azure, beige, coral, cyan, dandelion, fuchsia, gold, ivory, lavender, pink, salmon, lilac, magenta, mustard, olive, orchid, pearl, purple, ruby, scarlet, sepia, turquoise, etc. are figments of the active imagination, created by the advertising departments of paint and fabric manufacturers and marketed to gullible consumers. The list of seven colors above is complete, and it names all of them that exist.
The energy of this photon is 3,7351.10e-19 joules.
487 Joules corresponds to 487 nm.
Joules or Newton-meters.1 J = 1 Nm
3.84 x 10-19 joules.
The energy of the photon is 3,1631.e-19 joule.
Newton x meter is joules. (Please note that Nm is also used for torque; in this case, it happens to have the same units, but it is unrelated to energy, and can therefore not be converted to energy units.)
The energy is 18,263.10e4 joules.
Answer #1: Joules (J) or Newton metres (Nm)==================================Answer #2: Energy
300 nm
Violet light: 380-450 nm Red light: 620-750 nm nm=nanometer=10-9 meter
3.04 10-19 j
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 .