Home
Class 9
PHYSICS
True of False. Infrasound is used to es...

True of False.
Infrasound is used to establish ship to ship communication.

Promotional Banner

Topper's Solved these Questions

  • REFLECTION OF LIGHT

    TARGET PUBLICATION|Exercise EXERCISE|22 Videos

  • WORK AND ENERGY

    TARGET PUBLICATION|Exercise EXERCISE|135 Videos

Similar Questions

Explore conceptually related problems

State whether the following statements are True or False: Infrasound is produced before earthquakes by vibrations of the earth's surface.

True or False : Thermometer is used to measure specific heat capacity

True or False. Lactobacilli can be used to treat abdominal discomfort.

True or False. Ammeter is used to measure the potential difference in the circuit.

True or false. If false, write the correct sentence. The basic functional unit used to study ecology is called as environment.

A communication between a fixed base station and several mobile units, located on ships or aircraft utilizing two way radio communication in the VHF and UHF is of frequency band

True or False. If false, write the correct sentence Galileo was the first scientist to use 4 telescope for space observation.

State whether the following statements are True or False ( If a statement is false, correct it and rewrite it): In anodising method, the copper or aluminium article is used as anode.

State whether the following statements are True or False: Infrasound has frequency greater than 20000 Hz.

TARGET PUBLICATION-STUDY OF SOUND-EXERCISE
  1. True of False. If false , write the correct sentence Velocity of sou...

    Text Solution

    |

  2. True of False. If false , write the correct sentence Bats, dolphins,...

    Text Solution

    |

  3. True of False. Infrasound is used to establish ship to ship communica...

    Text Solution

    |

  4. Complete the analogy Longitudinal wave : parallel :: transverse wave

    Text Solution

    |

  5. Complete the analogy Higher density: compression :: lower densily:.

    Text Solution

    |

  6. Complete the analogy Value of frequency: pitch of the sound :, value...

    Text Solution

    |

  7. Complete the analogy Receiver : reflected pulse :: Transmitter: .

    Text Solution

    |

  8. Match the following Match the parts of human ear given in column I w...

    Text Solution

    |

  9. Answer the following Fill in the blanks and explain. Sound does not...

    Text Solution

    |

  10. Answer the following Fill in the blanks and explain. The velocity o...

    Text Solution

    |

  11. Fill in the blanks and explain: The incidence of……in daily life shows...

    Text Solution

    |

  12. Fill in the blanks and explain: To discover a sunken ship or objects ...

    Text Solution

    |

  13. Answer the following Define time period (T) of a sound wave.

    Text Solution

    |

  14. Answer the following What is amplitude of a sound wave?

    Text Solution

    |

  15. Answer the following What is the relation between frequency and tim...

    Text Solution

    |

  16. Answer the following Derive an expression for speed of sound.

    Text Solution

    |

  17. Answer the following How do physical conditions affect velocity of s...

    Text Solution

    |

  18. The molecular weight of oxygen gas (02) is 32 while that of hydrogen g...

    Text Solution

    |

  19. Answer the following What bs the difference between frequency range ...

    Text Solution

    |

  20. what are the uses of ultrasonic sound?

    Text Solution

    |