Which particle has the smallest de Broglie wavelength?
an electron moving at 2.5×104 m s−12.5 \times 10^4\text{ m s}^{-1}2.5×104 m s−1
a proton moving at 2.5×104 m s−12.5 \times 10^4\text{ m s}^{-1}2.5×104 m s−1
an electron moving at 5.0×106 m s−15.0 \times 10^6\text{ m s}^{-1}5.0×106 m s−1
a proton moving at 5.0×106 m s−15.0 \times 10^6\text{ m s}^{-1}5.0×106 m s−1
26 exam-style questions on AQA A Level Physics Wave-particle duality (A-level only), covering Newton's corpuscular theory of light (A-level only), Significance of Young's double slits experiment (A-level only), Electromagnetic waves (A-level only), The discovery of photoelectricity (A-level only), Wave-particle duality (A-level only), and Electron microscopes (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.