In addition to continuous radiation, fluorescent lamps emit...

In addition to continuous radiation, fluorescent lamps emit some visible lines from mercury. A prominent line has a wavelength of $436 \mathrm{nm}$. What is the energy (in $\mathrm{J}$ ) of one photon of it?

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Photon Energy

Photon energy refers to the quantized amount of energy carried by a photon, the smallest unit of electromagnetic radiation. It is given by Planck's relation, E = hc/?, which connects the energy of the photon to its wavelength (or frequency), highlighting the fundamental quantum mechanical nature of light.

Planck's Constant

Planck's constant (denoted as h) is a fundamental physical constant in quantum mechanics that sets the scale of quantum effects. It links the energy of a photon with the frequency of its associated electromagnetic wave and is crucial for calculations involving quantum energy levels.

Speed of Light

The speed of light (represented as c) is a universal constant in vacuum and a fundamental parameter in physics. It serves as the connection between the frequency and wavelength of electromagnetic waves, playing a key role in the calculation of photon energy and in the underlying principles of special relativity.

Wavelength

Wavelength is the distance between successive peaks of a wave and is inversely related to the energy of the photon through the formula E = hc/?. In the context of electromagnetic radiation, the wavelength helps determine the position of the radiation within the electromagnetic spectrum and its corresponding energy.

Please give Ace some feedback