Home
Class 9
PHYSICS
Sounds we hear inform us of the state of...

Sounds we hear inform us of the state of world around us, especially of that part of it which our other senses, such as touch and sight, cannot reach. Illustrate this with appropriate examples.

Text Solution

Verified by Experts

(i) A buzzing fly informs us the presence of a nuisance. Had it not buzzed, we would have paid it no mind.
(ii) The lawn mower's putt-putt tells us that our neighbour has finaly got around to cleaning up the jungle in his garden - disappearance of a nuisance.
(iii) The sound of a teakettle informs us that the time has come foe a coffee break - presence of refreshment.
Thus, these sounds arouse varies emotions - anger at the fly, satisfaction that your neighbour has ultimately got across the hint to clean the forest, and desire for coffee.
Promotional Banner

Topper's Solved these Questions

  • SOUND

    PRADEEP|Exercise Problem for practice|24 Videos
  • SOUND

    PRADEEP|Exercise (6 a) Formative (Oral Testing)|10 Videos
  • SOUND

    PRADEEP|Exercise Higher Order Thinking|9 Videos
  • MOTION

    PRADEEP|Exercise Mock test|24 Videos
  • WORK AND ENERGY

    PRADEEP|Exercise III Quiz Testing|10 Videos

Similar Questions

Explore conceptually related problems

"The two states frequently has differences over the use of the river water, especially during the summer months." Identify which part of the sentence has an error and select the appropriate option: a) over the use of the river water b) The two states frequently c) has differences d) especially during the summer months

Astronauts in deep space use radio devices to communicate with each other. The radio device converts the sound produced by the first astronaut into radio signals that reach to the radio device of the second astronaut. There, this radio signal converts back into sound so that the second astronaut can hear the voice of the first. In outer space, astronauts use radio devices instead of direct sound to communicate because