Quantum Physics

Front

What color of visible light has the lowest frequency?

Back

Red light has the lowest frequency among visible colors.

Front

What happens to the energy of emitted electrons when light of shorter wavelength (300 nm) replaces light of longer wavelength (400 nm)?

Back

The emitted electrons are more energetic.

Front

What color of visible light has the highest frequency?

Back

Violet light has the highest frequency among visible colors.

Front

How can Planck's constant be calculated?

Back

Planck's constant can be found using the formula: energy of a particle x wavelength / speed of light.

Front

What is true about the momentum of photons?

Back

The momentum of a photon is directly proportional to its energy.

Front

Define wavelength in the context of light.

Back

Wavelength is the distance between successive peaks of a wave, typically measured in nanometers for light.

Front

What is the relationship between frequency and energy of a photon?

Back

The energy of a photon is directly proportional to its frequency.

Front

Explain the photoelectric effect.

Back

The photoelectric effect is the emission of electrons from a material when it absorbs light, demonstrating the particle nature of light.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.00 x 10^8 meters per second.

Front

What is the formula for calculating the energy of a photon?

Back

The energy of a photon can be calculated using the formula: E = h * f, where E is energy, h is Planck's constant, and f is frequency.