Photoelectric Effect and Duality of Light

Front

What is the photoelectric effect?

Back

The photoelectric effect is the phenomenon where electrons are ejected from a metal surface when it is exposed to light of sufficient frequency.

Front

What is the relationship between light frequency and electron ejection?

Back

Only high-frequency light can cause the ejection of electrons from a metal surface.

Front

What happens to the number of emitted photoelectrons when the intensity of light is increased?

Back

Increasing the intensity of light increases the number of emitted photoelectrons, provided the light frequency is above the threshold frequency.

Front

Which color of light has the highest energy per photon?

Back

Violet light has the highest energy per photon.

Front

What is the threshold frequency in the context of the photoelectric effect?

Back

The threshold frequency is the minimum frequency of light required to eject electrons from a metal surface.

Front

How does wavelength relate to the energy of light?

Back

Shorter wavelengths correspond to higher energy photons, while longer wavelengths correspond to lower energy photons.

Front

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

Back

Energy (E) = h * f, where h is Planck's constant and f is the frequency of the light.

Front

What is Planck's constant?

Back

Planck's constant (h) is a fundamental constant used to describe the sizes of quanta in quantum mechanics, approximately equal to 6.626 x 10^-34 Js.

Front

What is the duality of light?

Back

The duality of light refers to the concept that light exhibits both wave-like and particle-like properties.

Front

What is a photon?

Back

A photon is a quantum of light or electromagnetic radiation, which carries energy proportional to its frequency.