The speed of sound in steel is……….
a) 350 m/s
b) 2,100 m/s
c) 1,500 m/s
d) 6,000 m/s
Sound travels the slowest in…….
a) water
b) steel
c) copper
d) air
Which group of people is unable to hear one another?
a) a group of mountaineers on k-2
b) a group of tourists in deserts
c) a group of astronauts on the Moon
d) a group of people in a closed room
A sound is produced by ………..
a) vibrating body
b) non-vibrating body
c) solid body
d) liquid body
Sound is a form of………
a) voice
b) light
c) energy
d) all of these
The sound is a form of energy which travels through any medium as. NTS CT 25/08/2019 (8:30)
a) Longitudinal waves
b) Transverse waves
c) Only rarefaction
d) Only compression
