Home
Class 9
PHYSICS
A girl is sitting in the centre of a gar...

A girl is sitting in the centre of a garden of dimensions 12m `xx` 12 m. There is a house on the left side adjacent to the garden and a road to right side. A fire-cracker burst on the road, would the girl hear echo?

Text Solution

Verified by Experts

No
Promotional Banner

Topper's Solved these Questions

  • SOUND

    KUMAR PRAKASHAN|Exercise QUESTIONS AND ANSWERS (Solve the following numericals:) (Textual Examples Numericals)|3 Videos
  • QUESTION PAPER 03

    KUMAR PRAKASHAN|Exercise SECTION -D|3 Videos
  • WORK AND ENERGY

    KUMAR PRAKASHAN|Exercise QUESTION & ANSWER (ADDITIONAL NUMERICALS FOR PRACTICE)|50 Videos

Similar Questions

Explore conceptually related problems

A cube has a side of length 1.2 xx 10^(-2)m . Calculate its volume.

A commander fires a shell at certain angle of projection from A which clears the building of dimensions 20xx15xx12.5m in it's diagonal plane. Shell just clears the roof diagonally at points P and Q and falls on the other side of the building at B and makes angle 45^(@) with the horizontal at P and Q as shown in the figure. If the range AB of the shell is a^(2)xxsqrt(b) then find b? (a and b lowest possible integers)

A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road, then the work done against the gravitational force would be …………. J (Take g=10ms^(-2) )

A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled carboard. Each cone has a base diameter of 40 cm and height 1 m. If the outer side of each of the cones is to be painted and the cost of painting is Rs. 12 per m^(2) , what will be the cost of painting all these cones ? (Use pi=3.14 and take sqrt(1.04)=1.02 )

A wall of length 10 m was to be built across an open ground. The height of the wall is 4 m and thickness of the wall is 24 cm. If this wall is to be built up with bricks whose dimensions are 24 cm times 12 cm times 8 cm, how many bricks would be required ?

Parveen wanted to make a temporary shelter for her car, by making a box-like structure with tarpaulin that cofers all the four sides and the top of the car (with the front face as a flap which can be rolled up). Assuming that the stitching margins are very small, and therefore negligible, how much tarpaulin would be required to make the shelter of height 2.5 m, with base dimensions 4 m times 3 m ?

KUMAR PRAKASHAN-SOUND-QUESTIONS AND ANSWERS (Additional numericals for practice)
  1. Calculate the frequency of an oscillator having periodic-time 0.01 s

    Text Solution

    |

  2. If an oscillator performs 50 oscillations in 1s. find out the periodic...

    Text Solution

    |

  3. If periodic time of a sound wave having wavelength 0.24 m in a medium ...

    Text Solution

    |

  4. If frequency of a sound wave in air having wavelength 34 m is 10 Hz, f...

    Text Solution

    |

  5. If velocity of a sound wave having wavelength 0.17 cm is 340 ms. then ...

    Text Solution

    |

  6. A stationary (steady) ship transmits ultrasonic sound, that returns fr...

    Text Solution

    |

  7. How much time is required for a sound wave having frequency 2 kHz and ...

    Text Solution

    |

  8. The frequency of the sound wave having velocity 340 m s^(-1) is 5 kHz...

    Text Solution

    |

  9. Human ear can hear the sound wave having frequency from 20 Hz to 20,00...

    Text Solution

    |

  10. A source of transverse wave produces 40 crests and 40 troughs in 0.4s....

    Text Solution

    |

  11. If the velocity of sound in aluminium is 5100 ms^(-1) find out wavelen...

    Text Solution

    |

  12. The distance between two consecutive crests of waves of water collidin...

    Text Solution

    |

  13. write 3 equations of rotational motionmotion. Explain it

    Text Solution

    |

  14. A girl is sitting in the centre of a garden of dimensions 12m xx 12 m....

    Text Solution

    |

  15. The thunder sound is heard on the carth after 10 8 of the flash of lig...

    Text Solution

    |

  16. The speed of sound in air is 340 ms ^(-1) (1) find the wavelength of ...

    Text Solution

    |