Home
Class 11
PHYSICS
The number of waves contained in unit le...

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

A

Elastic wave

B

Elastic wave

C

Wave pulse

D

Electromagnetic wave

Text Solution

Verified by Experts

The correct Answer is:
B
Reciprocal of wavelength is called wave number, i.e. `(1)/(lambda)`.
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

The number of waves in 7.5 cm length in vacuum is the same as the number of waves in 5 cm length of a medium . What is the refractive index of the medium ?

Phenomenon of bending of waves withoug a changed in medium is called

The charge deposited per unit length of cylinder is called as

The fall of potential per unit length of wire is called……..

In transverse wave, the contituent particles of the medium oscillate

Assertion : Wave number is the number pf waves per units length. Reason : Wave number =(1)/(lambda) .

The force exerted by electromagnetic wave on unit area of the surface is called.........

In a transverse wave, the particles of the medium

If velocity of light is taken as the unit of velocity and an year is taken as the unit of time, what is the unit of length? What is it called?

If the velocity of light is taken as the unit of velocity and one year is the unit of time, what must be the unit of length? What is it called?

ERRORLESS-WAVES AND SOUND -PAST YEARS QUESTIONS
  1. The velocity of sound is v(s) in air. If the density of air is increa...

    Text Solution

    |

  2. Speed of sound in mercury at a certain temperature is 1450 m/s . Given...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |