Home
Class 11
PHYSICS
A boat at anchore is rocked by waves who...

A boat at anchore is rocked by waves whose crests are `100m` apart and velocity is `25 m//s` The boat bounces up once in every

A

2500 s

B

75 s

C

4 s

D

0.25 s

Text Solution

Verified by Experts

The correct Answer is:
C
`lambda=100m`
`v=lambda//f=(lambda)/(T)`
`implies T=(lambda)/(v)=(100)/(25)=4sec`.
Promotional Banner

Topper's Solved these Questions

  • WAVES AND SOUND

    ERRORLESS|Exercise ASSERTION & REASON |25 Videos

  • WAVES AND SOUND

    ERRORLESS|Exercise NCERT BASED QUESTIONS (MUSICAL SOUND) |17 Videos

  • UNITS, DIMENSIONS AND MEASUREMENT

    ERRORLESS|Exercise ASSERTION & REASON |17 Videos

  • WORK, ENERGY POWER AND COLLISION

    ERRORLESS|Exercise ASSERTION & REASON |22 Videos

Similar Questions

Explore conceptually related problems

A boat at unchore by waves whose crests are 100m apart and velocity is 25 m//s The hour bounces up once in every

A boat at anchor is rocked by waves whose crests are 100 m apart and whose speed is 25 m//s . These waves reach the boat once every :

A boat at anchor is rocked by waves whose troughs are 80 m apart and whose velocity is 20 m/s. How often do the crest reach the boat ?

A boat anchor is rocked by waves whose consecutive crests are 100 m apart. If the wave speed of the moving crests is 20 m//s , calculate the frequency at which the boat rocks.

A women on the deck of a ship anchored in the ocean observes that the crests of passing waves are 11m apart and that the crest hits the bow of the ship every 3.0s . Calculate the velocity of the waves. Strategy: According to Eq. we can calculate the velocity u , provided the values of wavelength lambda and frequency v of the waves are known.

ERRORLESS-WAVES AND SOUND -PAST YEARS QUESTIONS
  1. Speed of sound in mercury at a certain temperature is 1450 m/s . Given...

    Text Solution

    |

  2. The number of waves contained in unit length of the medium is called

    Text Solution

    |

  3. A boat at anchore is rocked by waves whose crests are 100m apart and v...

    Text Solution

    |

  4. The echo of a gun shot is heard 8 sec. after the gun is fired. How far...

    Text Solution

    |

  5. The equation of displacement of two waves are given as y(1)=10sin(3 p...

    Text Solution

    |

  6. The function sin^(2)(omega t) represents:

    Text Solution

    |

  7. The equation of a sound wave is y=0.0015sin(62.4x+316t) the wavelength...

    Text Solution

    |

  8. The equation of a travelling wave is y=60 cos(1800t-6x) where y is...

    Text Solution

    |

  9. The equation of a simple harmonic wave is given by y = 3 sin"(pi)/(2)...

    Text Solution

    |

  10. The superposing waves are represented by the following equations : ...

    Text Solution

    |

  11. The phase difference between two waves meeting at a point is 3 pi/2. W...

    Text Solution

    |

  12. Two sources A and B are sounding notes of frequency 680 Hz. A listener...

    Text Solution

    |

  13. A source of unknown frequency gives 4 beats//s, when sounded with a so...

    Text Solution

    |

  14. When a guitar string is sounded with a 440 Hz tuning fork a beat frequ...

    Text Solution

    |

  15. The frequency of tuning forks A and B are respectively 3% more and 2% ...

    Text Solution

    |

  16. Two sources of sound placed close to each other are emitting progressi...

    Text Solution

    |

  17. Three sound waves of equal amplitudes have frequencies (n-1) ,n (n+1) ...

    Text Solution

    |

  18. If we study the vibration of a pipe open at both ends, then the follow...

    Text Solution

    |

  19. A standing wave having 3 nodes and 2 antinodes is formed between two a...

    Text Solution

    |

  20. At a certain instant a stationary transverse wave is found to have max...

    Text Solution

    |