Edexcel A level Physics Exam With Complete Solutions 2024

Edexcel A level Physics exam with complete solutions 2024 Coherent - correct answer-When two waves have the same wavelength, frequency and a fixed phase difference between them If a wave enters a material with a greater refractive index it refracts... - correct answer-Towards the normal (slows down) If a wave enters a material with a lower refractive index it refracts... - correct answer-Away from the normal (speeds up) Refractive index from glass to water equals - correct answer-Sin(angle of incidence)/sin(angle of refraction) What is polarised light - correct answer-Oscillations in a single plane including the plane of propagation To increase the distance between maxima, the number of slits per metre on a diffraction grating should...so d in ny=dsin0 should... - correct answer-Increase, decrease A magnifying glass consists of a...lens and the object is ...the focal length so the image is...and... - correct answer-Converging, before, virtual, upright Hard - correct answer-Difficult to indent surface Stiffness - correct answer-How easily a material bends/ gradient of a force extension graph Tough - correct answer-Absorbs a lot of energy from shocks without breaking/ large plastic region Brittle - correct answer-Shatters when subjected to large impacts/ little or no plastic region Strong - correct answer-Withstands a large force without breaking, high breaking stress Malleable - correct answer-Can be hammered into thin sheets Ductile - correct answer-Can be drawn into thin wires Random - correct answer-Cannot tell which nucleus will decay next