Albert Einstein - Why Light is Quantum

The video explores Albert Einstein's contributions to modern physics, focusing on his revolutionary idea that light is composed of particles, known as quanta. This concept challenged the 19th-century belief that light was a continuous wave. Einstein's insight was based on the observation that light emitted from hot objects shares energy distribution characteristics with gases. His theory explained certain unexplained experiments involving electrons and metals, ultimately earning him a Nobel Prize. The video celebrates Einstein's legacy on the 133rd anniversary of his birth.

What is the common knowledge about Einstein's contributions to physics?

• He discovered the electron.

• He was a famous mathematician.

• He developed the theory of relativity.

• He invented the light bulb.

What was the main idea proposed in Einstein's 1905 paper?

• Light is a type of gas.

• Light is a form of sound.

• Light is composed of individual particles.

• Light is a continuous wave.

How did Einstein's idea about light differ from the 19th-century physicists' view?

• He suggested light was a type of gas.

• He thought light was a form of sound.

• He proposed light was made of particles.

• He believed light was a continuous wave.

What did Einstein's proposal about light help to explain?

• The behavior of sound waves.

• The movement of planets.

• The structure of atoms.

• Experiments involving electrons and metals.

What recognition did Einstein receive for his work on the particle nature of light?

• He was awarded a Fields Medal.

• He received a Nobel Prize.

• He became a university professor.

• He was knighted by the Queen.