Home
Class 12
PHYSICS
Write the uses of light emitting diode....

Write the uses of light emitting diode.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR DEVICES

    AAKASH SERIES|Exercise Problems (LEVEL-I)|35 Videos

  • SEMICONDUCTOR DEVICES

    AAKASH SERIES|Exercise Problems (LEVEL-II)|9 Videos

  • SEMICONDUCTOR DEVICES

    AAKASH SERIES|Exercise Exercise (Short answer questions)|27 Videos

  • RAY OPTICS

    AAKASH SERIES|Exercise PROBLEMS ( LEVEL-II)|60 Videos

  • UNITS AND MEASUREMENT

    AAKASH SERIES|Exercise PRACTICE EXERCISE|45 Videos

Similar Questions

Explore conceptually related problems

Mention the important considerations required while fabricating a p-n junction diode to be used as light emitting diode (LED). What should be the order of the band gap of an LED if it is required to emit light in the visible region.

With the help of the diagram, show the biasing of light emitting diode. Give its two advantages over conventional incandescent lamps.

In a light emitting diode (LED)

Two incoherent sources of light emitting light of intensity I_(0) and 3I_(0) interfere in a medium. Calculate, the resultant intensity at any point.

From the information of energy band gaps of diodes, how do you decide which can be light emitting diodes?

There are two sources of light, each emitting with a power of 100W . One emits X-rays of wavelength 1nm and the other visible light at 500nm . Find the ratio of number of photons of X-rays to the photons of visible light of the given wavelength?

There are two sources of light, each emitting with a power of 100W . One emits X-rays of wavelength 1nm and the other visible light at 500nm . Find the ratio of number of photons of X-rays to the photons of visible light of the given wavelength?

Why can’t two independent monochromatic sources of light emitting light of one and the same wavelength behave as coherent sources?

If the wavelength of light emitted by a sodium vapour lamp is 5893 A then the numebr of photons emitted in 5 hour by a 50 W lamp will be

What is the use of a Zener diode?

AAKASH SERIES-SEMICONDUCTOR DEVICES-Exercise (very Short answer questions)
  1. To reverse -bias a diode, its p-type is to be connected to the negativ...

    Text Solution

    |

  2. Which type of biasing gives a semi-conductor diode very high resistanc...

    Text Solution

    |

  3. Can the potential barrier across a p - n junction be measured by simpl...

    Text Solution

    |

  4. Which type of break down results due to strong electric fields at the ...

    Text Solution

    |

  5. Is it correct to say that a diode behaves like a closed switch in the ...

    Text Solution

    |

  6. What is the use of a Zener diode?

    Text Solution

    |

  7. In which bias zener diode characteristic is same as that of function d...

    Text Solution

    |

  8. Distinguish half wave and full wave rectifiers

    Text Solution

    |

  9. In half-wave rectification, what is the output frequency if the input ...

    Text Solution

    |

  10. Can a zener diode be used in place junction diode in rectifier circuit...

    Text Solution

    |

  11. What is a transistor ? i)What is a transistor ? ii) In an n-p-n tr...

    Text Solution

    |

  12. Draw the circuit symbols for p-np and n-p-n transistors.

    Text Solution

    |

  13. Define amplifier and amplification factor.

    Text Solution

    |

  14. Can two diodes combined back to back as shown in figure from a transis...

    Text Solution

    |

  15. In common base configuration, current gain (alpha) is defined as the r...

    Text Solution

    |

  16. What will be the relation between alpha and beta ?

    Text Solution

    |

  17. Define voltage gain and power gain.

    Text Solution

    |

  18. Write the uses of photo diode.

    Text Solution

    |

  19. Write the uses of light emitting diode.

    Text Solution

    |

  20. Define a solar panel.

    Text Solution

    |