Home
Class 7
PHYSICS
The sound produced by a siren given by a...

The sound produced by a siren given by a company reaches a person on the road at a distance of 110 m in _______ s. (Velocity of sound in air is `330 ms^(-1)`)

A

`3`

B

`4`

C

`1//3`

D

`0.5`

Text Solution

Verified by Experts

The correct Answer is:
C
Distance of the person, (d) = 110 m. Velocity of sound, (V) = 330 m `s^(-1)`. Time taken, (t) = ? Velocity =`("distance ")/("time taken")impliest=(110)/(330 ) =1/3 s`
Promotional Banner

Topper's Solved these Questions

  • SOUND

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-2)|29 Videos

  • SOUND

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-3)|5 Videos

  • SOUND

    PEARSON IIT JEE FOUNDATION|Exercise TEST YOUR CONCEPTS ( ESSAY TYPE QUESTIONS )|13 Videos

  • OUR UNIVERSE

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST (TEST 2)|14 Videos

Similar Questions

Explore conceptually related problems

The frequency of a tuning fork is 600 Hz. What is the number of vibrations made by the tunning fork, when the sound produced by the tuning fork travels a distance of 110 ? (Velocity of sound in air is 330 ms^(-1) )

The minimum distance to hear an echo is (Taking the velocity of sound in air to be 330 m s^(-1) )

A man sets his watch by the sound of a siren placed at a distance 1 km away . If the velocity of sound is 330 m//s

The frequency of a tuning fork is 350 Hz . Find how many vibrations it executes while the sound produced by it travels a distance of 70 m . (velocity of sound in air 330 m s^(-1) ) .

If the same time taken for the reflected sound to reach the sonar os 2 s, the depth of the sea is _______ m. (velocity of sound in water is 1500 ms^(-1) )

A thunder tap is heard 5.5 s after the lightening flash. The distance of the flash is (velocity of sound in air is 330 m/s) :-

A person hears the sound of the explosion of a bomb after 5 s and another person hears the sound after 6 s. The ratio of minimum and maximum possible distance between the person is _____. ( velocity of sound in air is 330 ms^(-1) )

An echo of sound produced by a person, is heard from a distant tower after an interval of 1.5 s. If the speed of sound in air is 330 ms^(-1) , then the distance of the tower from the person is _______ m.

PEARSON IIT JEE FOUNDATION-SOUND-CONCEPT APPLICATION (LEVEL-1)
  1. A frequency of 1 Hz means oscillations per second.

    Text Solution

    |

  2. Ultrasonic sound waves are used in

    Text Solution

    |

  3. The sound produced by a siren given by a company reaches a person on t...

    Text Solution

    |

  4. The velocity of a wave is 220 ms^(-1), the distance travelled by the w...

    Text Solution

    |

  5. An echo of sound produced by a person, is heard from a distant tower a...

    Text Solution

    |

  6. The flash of lightening is seen much before we hear the thunder becaus...

    Text Solution

    |

  7. Which of the following materials is the best absorber of sound ?

    Text Solution

    |

  8. The pitch of sound is determined by the of vibration.

    Text Solution

    |

  9. When two tunning forks A and B, having frequencies 512 Hz and 212 Hz, ...

    Text Solution

    |

  10. The time period of a seconds pendulum is s.

    Text Solution

    |

  11. The frequency of a vibrating body is 100 Hz. Its time period is

    Text Solution

    |

  12. The velocity of sound in vacuum is m s^(-1)

    Text Solution

    |

  13. The time taken to displace a vibrating body from its mean position to ...

    Text Solution

    |

  14. Which of the following statements is wrong?

    Text Solution

    |

  15. As the amplitude of a vibrating body increases, the loudness of the so...

    Text Solution

    |

  16. A tabla or a drum is an example of a

    Text Solution

    |

  17. The loudness of sound is measured in .

    Text Solution

    |

  18. Loudness of a sound in the range of 5 dB - 8 dB is .

    Text Solution

    |

  19. When the length of the pendulum increases, the time period of the pend...

    Text Solution

    |

  20. Arrange the following steps in a sequential order to verify the laws o...

    Text Solution

    |