What is the wavelength of photon emitted?
Speed of electromagnetic waves = c = 3 × 108 m/s Planck’s constant = h = 6.63 × 10-34 Js. We want to calculate the frequency, wavelength and energy of the emitted photon, when the atom makes a transition from ni = 4 to nf = 2. = −13.6 × 3 16 eV = 2.55 eV.
What is the energy of a photon of red light that has a wavelength of 656 nm?
That red line has a wavelength of 656 nm. If you do the math you’ll see that the frequency is then 4.57 X 1014 Hz. Using the Planck’s constant equation it can be determined that each photon of this light carries 3.03 X 10-19 J of energy.
What is the energy of a photon in J emitted by the transition from the Ni 5?
What is the energy of a photon in J emitted by the transition from ni = 5 to the nf = 1 of a hydrogen atom? The energy emitted by the transition is -2.091×10-19 J.
Which of the following could be the value of a wavelength that is found in the visible region of the electromagnetic spectrum?
Visible (Wavelength ~ 10-7 meters) Visible light covers the range of wavelengths from 400 – 750 nm or 0.4 to 0.75 micrometers. This is the only region in spectrum that human eyes are sensitive to.
What kind of radiation is light with a wavelength of 1 cm?
| Region | Wavelength | Energy |
|---|---|---|
| Visible (red) | 700 nm | 1.8 eV |
| Infrared | 10000 nm | 0.12 eV |
| Microwave | 1 cm | 1.2 × 10-4 eV |
| Microwave/Radio | 10 cm | 1.2 × 10-5 eV |
What kind of radiation is light with a wavelength of 500 nm?
Visible light has a wavelength range from ~400 nm to ~700 nm. Violet light has a wavelength of ~400 nm, and a frequency of ~7.5*1014 Hz. Red light has a wavelength of ~700 nm, and a frequency of ~4.3*1014 Hz….The EM spectrum.
| Type of Radiation | Frequency Range (Hz) | Wavelength Range |
|---|---|---|
| radio waves | < 3*1011 | > 1 mm |