Physics
Planck's Law
Quick fact
Planck's Law showed that energy is emitted in discrete packets called quanta, not as continuous waves.
Why this is interesting
Have you ever wondered why a hot stove glows red, while a cooler one glows orange? The answer lies in how objects emit energy at different temperatures.
Read the full explanation
Understanding Planck's Law
Imagine a glowing object like the sun or a light bulb. It emits energy across many colors of light, but each color has a specific intensity depending on its temperature. Planck’s Law explains how much energy is emitted at each wavelength based on that temperature.
A deeper explanation
Planck's Law mathematically describes the relationship between the temperature of an object and the distribution of energy it emits across different wavelengths. It introduced the idea that energy is not continuous but comes in discrete 'packets' called quanta, which was a key insight leading to quantum mechanics.