Home
Class 11
PHYSICS
Two sound waves with wavelengths 5.0 m a...

Two sound waves with wavelengths `5.0 m` and `5.5 m` respectively, each propagates in a gas with velocity `30m//s` We expect the following number of beats per second:

A

1

B

6

C

12

D

0

Text Solution

Verified by Experts

The correct Answer is:
B
`f_("beat")=f_(1)-f_(2)=(v)/(lambda_(1))-(v)/(lambda_(2))`
`implies f_("beat")=(330)/(5)-(330)/(5.5)=6`.
Promotional Banner

Topper's Solved these Questions

  • WAVES AND SOUND

    ERRORLESS|Exercise NCERT BASED QUESTIONS (STATIONARY WAVES)|10 Videos

  • WAVES AND SOUND

    ERRORLESS|Exercise NCERT BASED QUESTIONS (VIBRATION OF STRING) |29 Videos

  • WAVES AND SOUND

    ERRORLESS|Exercise NCERT BASED QUESTIONS (INTERFERENCE AND SUPERPOSITION OF WAVES)|23 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

Two sound waves of wavelength 1 m and 1.01 m in a gas produce 10 beats in 3 s. The velocity of sound in the gas is

Two notes of wavelength 2.04 m and 2.08 m produce 200 beats per minute in a gas. Find the velocity of sound in the gas.

Two waves of wavelengths 99 cm and 100 cm both travelling with velocity 396 m/s are made to interfere. The number of beats produced by them per second are

Two sound waves of wavelengths 5 m and 6 m formed 30 beats in 3 seconds. The velocity of sound is

Two sound waves of wavelength 10 m and 10.1 m produces 0.33 beats/s. Then the velocity of sound is

Two sound waves of wavelength 1 m and 1.02 m produces 16 beats in 2 s in a medium then the velocity of the sound in that medium is

Two waves of wavelength 2m and 2.02 m respectively, moving with the same velocity superpose to produce 2 beats/second. The velocity of the waves is

Two sound waves of wavelengths 40 cm and 40.5 cm produce 10 beats per second. What will be the speed of sound in air ?

ERRORLESS-WAVES AND SOUND -NCERT BASED QUESTIONS (BEATS)
  1. The disc of a siren containing 60 holes rotates at a constant speed of...

    Text Solution

    |

  2. When a tuning fork produces sound waves in air, which one of the follo...

    Text Solution

    |

  3. When a tuning fork vibrates, the waves produced in the fork are

    Text Solution

    |

  4. Two turning forks of frequencies n(1) and n(2) produces n beats per s...

    Text Solution

    |

  5. Two sound waves with wavelengths 5.0 m and 5.5 m respectively, each pr...

    Text Solution

    |

  6. Two vibrating tuning forks produce progressive waves given by y(1)=sin...

    Text Solution

    |

  7. Two sound waves of wavelengths 5 m and 6 m formed 30 beats in 3 second...

    Text Solution

    |

  8. Two waves of frequencies 20 Hz and 30 Hz. Travels out from a common po...

    Text Solution

    |

  9. Each of the two strings of length 51.6 cm and 49.1 cm are tensioned se...

    Text Solution

    |

  10. A tuning fork of frequency 250 Hz produces a beat frequency of 10 Hz w...

    Text Solution

    |

  11. A tunig fork whose frequency as given by mufacturer is 512 Hz is being...

    Text Solution

    |

  12. A tuning fork of frequency 480 Hz produces 10 beats per second when so...

    Text Solution

    |

  13. A source of sound gives five beats per second when sounded with anothe...

    Text Solution

    |

  14. Two sound waves of wavelengths 50 cm and 51 cm produce 12 beats per se...

    Text Solution

    |

  15. Two strings X and Y of a sitar produce a beat frequency 4 Hz.When the ...

    Text Solution

    |

  16. A tuning fork of known frequency 256 Hz makes 5 beats per second with ...

    Text Solution

    |

  17. Two waves represented by the following equations are travelling in the...

    Text Solution

    |

  18. When two tuning forks A and B are sounded together, 4 beats per second...

    Text Solution

    |