Home
Class 10
PHYSICS
Two waves A and B have wavelength 0-01 Å...

Two waves A and B have wavelength 0-01 Å and 9000 Å respectively.
(a) Name the two waves.
(b) Compare the speeds of these waves when they travel in vacuum.

Text Solution

Verified by Experts

The correct Answer is:
(a) A-gamma, B-infrared. (b) 1:1
Promotional Banner

Topper's Solved these Questions

  • SPECTRUM

    ICSE|Exercise EXERCISE B (MULTIPLE CHOICE TYPE)|6 Videos

  • SPECTRUM

    ICSE|Exercise EXERCISE B (NUMERICALS)|4 Videos

  • SPECTRUM

    ICSE|Exercise EXERCISE A (NUMERICALS)|4 Videos

  • SPECIMEN QUESTION PAPER

    ICSE|Exercise QUESTIONS|33 Videos

  • WORK,POWER AND ENERGY

    ICSE|Exercise DIAGRAM BASED MCQ|3 Videos

Similar Questions

Explore conceptually related problems

Two stars A and B radiate maximum energy at wave lengths 4000Å and 5000Å respectively. The ratio of their temperature will be-

Two waves are said to be coherent, if they have

State two factors on which the speed of a wave travelling in a medium depends.

A wave has a wavelength 10-3 nm. (a) Name the wave. (b) State its one property different from light.

Two bodies A and B have emissivities 0.5 and 0.8 respectively. At some temperature the two bodies have maximum spectral emissive powers at wavelength 8000 Å and 4000 Å respectively. The ratio of their emissive powers at these temperatures is :

two waves of wavelengths 2 m and 2.02 m respectively, moving with the same velocity superpose to produce 2 beats per second. The velocity of the wave is

A wave has wavelength 50 A. (a) Name the wave. (b) State its speed in vacuum. (c) State its one use.

Wavelength of given light waves in air and in a medium are 6000 Å and 4000 Å respectively . The critical angle for the medium is given by

A type of electromagnetic wave has wavelength 50 Å. What is the speed of the wave in vacuum ?

An electromagnetic wave has a frequency of 500 MHz and a wavelength of 60 cm. (a) Calculate the speed of the wave. (b) Name the medium through which it is travelling.

ICSE-SPECTRUM-EXERCISE B
  1. Give one use each of (a) microwaves, (b) ultraviolet radiations, (c) i...

    Text Solution

    |

  2. Name the waves (a) of lowest wavelength, (b) used for taking photograp...

    Text Solution

    |

  3. Two waves A and B have wavelength 0-01 Å and 9000 Å respectively. (a...

    Text Solution

    |

  4. Name two sources, each of infrared radiations and ultraviolet radiatio...

    Text Solution

    |

  5. What are infrared radiations ? How are they detected ? State one use o...

    Text Solution

    |

  6. What are ultraviolet radiations ? How are they detected ? State one us...

    Text Solution

    |

  7. Name three properties of ultraviolet radiations which are similar to v...

    Text Solution

    |

  8. Give two properties of ultraviolet radiations which differ from visibl...

    Text Solution

    |

  9. Mention three properties of infrared radiations similar to visible lig...

    Text Solution

    |

  10. Give two properties of infrared radiations which differ from visible l...

    Text Solution

    |

  11. Name the material of prism required for obtaining the spectrum of (a) ...

    Text Solution

    |

  12. Name the radiations which are absorbed by the green house gases in the...

    Text Solution

    |

  13. State one harmful effect each of the (a) ultraviolet and (b) infrared ...

    Text Solution

    |

  14. Give reason for the following: (i) Infrared radiations are used for ...

    Text Solution

    |

  15. (a) Give a list of at least five radiations, in the order of their inc...

    Text Solution

    |

  16. (a) Arrange the following radiations in the order of their increasing ...

    Text Solution

    |

  17. A wave has a wavelength 10-3 nm. (a) Name the wave. (b) State its one ...

    Text Solution

    |

  18. A wave has wavelength 50 A. (a) Name the wave. (b) State its speed in ...

    Text Solution

    |

  19. (a) Name the high energetic invisible electro magnetic wave which help...

    Text Solution

    |

  20. State the name and the range of wavelength of the invisible electromag...

    Text Solution

    |