Home
Class 11
PHYSICS
If the splash is heard 4.23 s after a st...

If the splash is heard 4.23 s after a stone is dropped into a pit in which water level is 78.4 m deep, the velocity of sound is

A

`360.9 m//s`

B

`350.9 m//s`

C

`340.9 m//s`

D

`330.9 m//s`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    TARGET PUBLICATION|Exercise EXERCISE|147 Videos

  • Thermal Properties of Matter

    TARGET PUBLICATION|Exercise Exercise|259 Videos

Similar Questions

Explore conceptually related problems

A man standing between two parallel cliffsfires a gun and hearstwo echoes of the report, one after 1 s and the other after 4 s. What is the distance between the cliffs if the velocity of sound is 340 m//s .

Sunil is standing between two walls. The wall closest to him is at a distance of 660 m. If he shouts, he hear the first echo after 4 s and another after another 2 seconds. What is the velocity of sound in air?

A man is standing between two parallel cliffs and fires a gun. If he hears first and second echoes after 1.2 s and 3.6 s respectively, the distance between the cliffs is (velocity of sound in air = 340 m s^(-1) )

Nita heard the sound of lightning after 4 seconds of seeing it. What was the distance of the lightning from her? (The velocity of sound in air is 340 m//s )

The velocity of sound is v_s in air. If the density of air is increased to 4 times, then the new velocity of sound will be

The observer is moving with velocity 'v_0' towards the stationary source of sound and then after crossing moves away from the source with velocity ' v_0 '. Assume that the medium through which the sound waves travel is at rest, If 'v' is the velocity of sound and 'n' is the frequency emitted by the spurce then the difference between apparent frequencies heard by the observer is

Solve the following examples: (numerical problems) A body of mass 1 kg, moving with a velocity of 4 m/s collides with a body of mass 0.5 kg moving with a velocity of 2 m/s . If the velocity of the first body after collision is 8/3 m/s , find the velocity of the second body after collision.

A source of frequncy 340 Hz is kept above vertical cylindrical tube closed at lower end. The length of the tube is 120 cm. Water is slowly poured in just enough to produce resonance. The the minimum height (velocity of sound =340 m/s) of the water level in the tube for that resonance is.

A stone is dropped from the top of a tower of height 45 m. One second later another stone is thrown down from the town of the same tower. Both stones reach the ground at the same time. If (g= 10 m/s^2), magnitude of the initial velocity of the sound stone is

Ultrasonic waves are transmitted downwards into the sea with the help of a SONAR. The reflected sound is received after 4 s. What is the depth of the sea at that place? (Velocity of sound in seawater = 1550 m//s )

TARGET PUBLICATION-Sound-Exercise
  1. A tuning fork has frequency 512 Hz. The number of vibrations of the fo...

    Text Solution

    |

  2. Assertion: A tuning fork is made of an alloy of steel, nickel and chro...

    Text Solution

    |

  3. If the splash is heard 4.23 s after a stone is dropped into a pit in w...

    Text Solution

    |

  4. A closed organ pipe of length L and an open organ pipe contain gases o...

    Text Solution

    |

  5. A man is watching two trains, one leaving and the other coming in with...

    Text Solution

    |

  6. Which of the following requires a medium for their propogation?

    Text Solution

    |

  7. Sound waves travel at 350 m//s through a warm air and at 3500 m//s thr...

    Text Solution

    |

  8. If velocity of sound in a gas is 360 m//s and the distance between a c...

    Text Solution

    |

  9. The equation of the progressive wave is Y=3sin[x (frac(t)(3)-frac(x)(5...

    Text Solution

    |

  10. A wave travelling in the +ve x-direction having displacement along y-d...

    Text Solution

    |

  11. A sound wave y=A0 sin (omegat-kx) is reflected from a rigid wall with ...

    Text Solution

    |

  12. A transverse wave is described by the equation Y=Y(0) sin 2 pi (ft-fra...

    Text Solution

    |

  13. The displacement y of wave trvelling in the x-direction is given by y=...

    Text Solution

    |

  14. When a wave travels in a medium, the particle displacement is given by...

    Text Solution

    |

  15. Helium has density of 0.179 (kg)/m^3 at S.T.P. Considering helium gas ...

    Text Solution

    |

  16. At which temperature the speed of sound in hydrogen will be same as th...

    Text Solution

    |

  17. The velocity of sound waves in diatomic gas at 30^@C

    Text Solution

    |

  18. The velocity of sound in air at 20^@ C and 1 atm pressure in 344.2 m//...

    Text Solution

    |

  19. A uniform string of length 20 m is suspended from a rigid support. A s...

    Text Solution

    |

  20. It is possible to recognize a person by hearing his voice even if he i...

    Text Solution

    |