Skip to content
Philoid
Browse Saved
Back to chapter
Physics
12. Sound
Home · Class 9 · Physics · Ref. Book · 12. Sound
Prev
Next
Q10 of 50 Page 12

A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the sources?

Given,

Frequency, f = 500 Hz


Time period, T =


=


= 0.002 s


Therefore, the time interval between successive compressions from the source of sound is equal to the time-period of sound waves.

More from this chapter

All 50 →
8

Why are the ceiling of concert halls curved?

9

Calculate that wavelength of a sound wave frequency is 220 Hz and speed is 440 m/s in a given medium.

11

An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s-1?

12

Two children are at opposite ends of an aluminium rod. One strikes the end of rod with a stone. Find the ratio of times taken by sound wave in air and in aluminium to reach the second child (Given: Speed of sound in air = 346 m/s; Speed of sound in aluminium = 6240 m/s)

Questions · 50
12. Sound
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved