3d Quantum Physics Quiz a level edexcel

Quantization refers to:

• The process of converting continuous quantities into discrete values

• The emission of photons by excited atoms

• The bending of light around obstacles

• The interaction of waves and particles

What is the minimum energy required to remove an electron from a metal surface called?

• Photon energy

• Work function

• Stopping voltage

• De Broglie wavelength

Electronmicroscopyresolutionislimitedby:

• Thewavelengthofelectrons

• Theenergyofelectrons

• Thespeedofelectrons

• Thechargeofelectrons

Thewave-particledualitysuggeststhat:

• Light exhibits only wave-like properties

• Matter exhibits only particle-like properties

• Both light and matter exhibit wave-like and particle-like properties

• Neither light nor matter exhibit wave-like or particle-like properties

Thethresholdfrequencyofaphotonisthefrequency:

• At which photoelectrons are emitted

• Required to excite an electron to a higher energy level

• Below which no photoelectrons are emitted

• At which a photon reaches its maximum energy

Gaslinespectraareproduceddueto:

• The emission of photons by excited atoms

• The absorption of photons by atoms

• The reflection of light from a surface

• The refraction of light through a prism

Whatistheformulaforphotonenergy?

• E=hf

• E=mc^2

• E=h/λ

• E=kT

The intensity of radiation is defined as:

• The frequency of the radiation

• The speed of the radiation

• The power of the radiation per unit area

• The energy of the radiation per photon

Theelectrongroundstatereferstothestatewhereanelectron:

• Has maximum energy

• Has minimum energy

• Is moving at the speed of light

• Is ionized

Huygens' principle is based on:

• The wave-particle duality of light

• The quantization of energy levels

• The propagation of wavefront through a medium

• The generation of photons by electrons