Advertisements
Advertisements
प्रश्न
Sound travels in air :
विकल्प
if particles of medium travel from one place to another
if there is no moisture in the atmosphere
If disturbance moves
if both, particles as well s disturbance move from one place to another
Advertisements
उत्तर
Sound is a longitudinal wave in which the disturbance created by the vibrating body is carried out by the medium without the actual movement of the medium particles.
(c) If disturbance moves.
APPEARS IN
संबंधित प्रश्न
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
The time interval between a lightning flash and the first sound of thunder was found to be 5 s. If the speed of sound in air is 330 m s-1, find the distance of flash from the observer.
How long will sound take to travel in (a) and iron rail and (b) air, both 3.3 km in length? Take speed of sound in air to be 330 m/s and in iron to be 5280 m/s.
Write the answer in your own words.
Explain with the help of practical examples how sound is propagated through solids.
Does audible range of frequency vary from person and also with the age of the person?
The speed of sound is ______ in solids than in liquids
______ is the distance between two consecutive particles.
Rarefactions are the regions of ______ where particles are spread apart.
