Multiple choice

According to Planck, energy possessed by electrons is in pockets called

  1. Ohms

  2. Quanta.

  3. Lumens.

  4. Photons

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Max Planck introduced the concept of 'quanta' (singular: quantum) to explain that energy is emitted or absorbed in discrete packets, not continuously. This revolutionary idea formed the foundation of quantum mechanics. Ohms measure resistance, lumens measure luminous flux, and photons are particles of light themselves.