Physics 9702 · AS & A Level
Wave-particle duality
25 practice questions on Wave-particle duality, with worked solutions and instant marking.
State two advantages of sending data in digital form instead of analogue form.
Feb/March 2020
State the equation for the de Broglie wavelength $\lambda$ of a particle in motion. State the meaning of any other symbol used.
Feb/March 2022
State what is meant by the term de Broglie wavelength.
May/June 2011
State what the de Broglie wavelength means.
May/June 2011
An electron carries charge $-q$ and has mass $m$. It is speeded up from rest in a vacuum by moving through a potential difference $V$.
May/June 2017
The highest energy bands in a solid are called the valence band (VB), the forbidden band (FB) and the conduction band (CB). The copper wire is at room temperature.
May/June 2020
State one item of experimental evidence showing the particulate nature of electromagnetic radiation.
May/June 2022
State what the de Broglie wavelength refers to.
May/June 2023
State what the de Broglie wavelength means.
May/June 2023
State the meaning of the de Broglie wavelength.
May/June 2025
State what the de Broglie wavelength means.
May/June 2025
Describe what wave-particle duality means.
May/June 2025
State an effect that gives evidence for the wave nature of a particle.
Oct/Nov 2010
In cable television, signals are carried by optic fibres.
Oct/Nov 2011
State what is meant by the de Broglie wavelength.
Oct/Nov 2012
Electrons moving at speed $v$ in a vacuum strike a very thin carbon film, as shown in Fig. 7.1. The electrons that emerge then hit a fluorescent screen. A set of concentric rings is seen on the screen.
Oct/Nov 2013
Electrons moving at speed $v$ in a vacuum strike a very thin carbon film, as shown in Fig. 7.1. The electrons that emerge then fall on a fluorescent screen, where a set of concentric rings is seen.
Oct/Nov 2013
As infra-red radiation travels through an optic fibre, it is attenuated. State what attenuation means.
Oct/Nov 2015
Infra-red radiation becomes attenuated as it travels along an optic fibre.
Oct/Nov 2015
State an effect that gives evidence for the wave nature of a particle.
Oct/Nov 2016
Figure 11.1 illustrates some of the electron energy bands in a solid. The size of the forbidden band and the number of charge carriers in each band depend on the type of solid.
Oct/Nov 2016
Signals can be sent in either analogue or digital form. A benefit of digital transmission is that the signal can be regenerated.
Oct/Nov 2016
State an experimental phenomenon that gives evidence for the particulate nature of electromagnetic radiation.
Oct/Nov 2021
State an experimental result that shows electromagnetic radiation has a particulate nature.
Oct/Nov 2021
Electrons in a vacuum begin from rest and are accelerated by a potential difference (p.d.) $V$ so that a beam is produced. Each electron has mass $m$ and charge $q$. This beam is directed at a graphite crystal, which serves as a diffraction grating. After it passes through the crystal, the beam arrives at a fluorescent screen, where an interference pattern is seen.
Oct/Nov 2024