Questions And Answers Updated
2024
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, Longitudinal wave - Answers:Particle vibration is parallel to direction of wave propagation
Examples of a longitudinal wave - Answers:Sound waves, seismic p-waves
Transverse wave - Answers:Particle vibration is perpendicular to direction of wave propagation
Only transverse waves can be polarised
Examples of a transverse wave - Answers:Electromagnetic radiation, seismic s-waves
Particle displacement - Answers:The distance of a particle from its equilibrium position in given
direction
Amplitude - Answers:The maximum displacement of a particle (wave) from its equilibrium (or
rest) position
Frequency - Answers:The number of cycles of a wave that pass a point per second
Time period - Answers:The time for one complete oscillation
Wavelength (for non stationary wave) - Answers:Shortest distance between two points in phase
Wavelength for stationary wave - Answers:Distance between alternate nodes
or
distance from peak to peak/ trough to trough
Diffraction - Answers:Spreading out of a wave (when it passes through a gap or past the edge of
an object)
Refraction - Answers:Wave changes direction when its speed changes as it crosses a boundary