Sound waves, pressure waves and primary waves (a type of seismic wave produced by earthquakes), are longitudinal waves. Longitudinal waves can also be made by pushing a spring forwards and ...

Sound Waves. Part of Science Physics. ... Ultrasound waves are longitudinal waves just like sound waves, and they cannot pass through a vacuum. Ultrasound waves have a frequency above 20 000 Hz, ...

Longitudinal Ageing Study of India also called LASI Wave-1 Report has been released by the Ministry of Health and Family Welfare. Know all about the report here NEET UG Results 2025 OUT, Scorecard ...

THE temperature-dependent part of the ultra-sonic attenuation in single crystal quartz at frequencies in the range 600–1,200 Mc/s has been investigated at low temperatures. Fig. 1 refers to ...

More information: Pan Liu et al, A stable all-solid-state continuous-wave single-longitudinal-mode Nd:YVO 4 laser at 1064 nm based on the molecular iodine absorption, Optics & Laser Technology (2025).

ALL seismic work indicates that at least part of the core of the earth is liquid, since no transverse waves have ever been observed to pass through it. It has been suggested, however, that the ...

This project uses a servo motor and small slinky to demonstrate what a longitudinal wave looks like. Additionally it shows the crests and troughs of that longitudinal wave. It can also be utilized to ...

Sunday Times News: Sound is propagated in the form of longitudinal waves. When sound travels from one medium to another, both its velocity and wavelength undergo changes ...