Question

What did Einstein propose about the nature of light?

a. Light is composed of continuous waves.
b. Light is made up of particles called photons.
c. Light is made of protons and electrons.
d. Light is a form of energy.

Answer 1

Albert Einstein proposed that light is composed of particles called photons, which behave as both waves and particles.

Step-by-step explanation:

In 1905, Albert Einstein proposed that light be described as quanta of energy that behave as particles. He called these particles photons. Photons are particles of electromagnetic radiation that have zero mass and carry a quantum of energy. The energy of photons is quantized according to the E = hv equation. This idea of light as both a wave and a particle is known as wave-particle duality.