The speed of at 20oC is…….NTS PST (B) -------2021
a) 332 m/s
b) 344 m/s
c) 1680 m/s
d) 5130 m/s
The speed of sound in water is approximately
a) 1525 m/s
b) 340 m/s
c) 1680 m/s
d) 5130 m/s
Sound is kind of……………….
a) Work
b) Energy
c) Force
d) None
Sound is produced due to……..
a) Friction
b) Refraction
c) Vibration
d) Circulation
Sound is slowest in…………….
a) Liquid
b) Solid
c) Vacuum
d) Air
Sound passes from one
place to another place in form of………….
a) Ray
b) Waves
c) Energy
d) Light
