When vapour condenses into liquid 1 it absorbs heat 2 It

Last updated: 6/7/2023

When vapour condenses into liquid 1 it absorbs heat 2 It liberates heat 3 Its temperature increases 4 Its temperature decreases A travelling wave passes a point of observation At this point the time interval between successive crests is 0 2 s and 1 the wavelength is 5m 2 the frequency is 5 Hz 3 the velocity of propagation is 5m s 4 the wavelength is 0 2m A tuning fork makes 256 vibrations per second in air When the velocity of sound is 330 m s ther