Home
Class 12
CHEMISTRY
Which alkali metal is used in photoelect...

Which alkali metal is used in photoelectric cells ?

Text Solution

Verified by Experts

Celsium and potassium are used in photoelectric cells .
Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTIONS PAPER

    CHHAYA PUBLICATION|Exercise SET I (SECTION II ) (GROUP D)|11 Videos

  • MODEL QUESTIONS PAPER

    CHHAYA PUBLICATION|Exercise SET II SECTION I|11 Videos

  • MODEL QUESTIONS PAPER

    CHHAYA PUBLICATION|Exercise SET I (SECTION II ) (GROUP B)|7 Videos

  • MODEL QUESTION PAPER

    CHHAYA PUBLICATION|Exercise Answer the following question (set-3)|130 Videos

  • ORGANIC CHEMISTRY : BASIC PRINCIPLES AND TECHNIQUES

    CHHAYA PUBLICATION|Exercise WARM UP EXERICSE|132 Videos

Similar Questions

Explore conceptually related problems

Which alkali metal is used for making photoelectric cells?

What is a photoelectric cell?

What type of metals are used in photoelectric cells? Give one example.

Discuss two uses of photoelectric cells

Why are potassium and cesium, rather than lithium used in photoelectric cells?

Why are potassium and cesium, rather than lithium used in photoelectric cells?

Discuss why potassium and caesium are used in photoelectric cells.

Which alkali metal is used as a scavenger in metallurgy to remove O_2 and N_2 gases ?

Questions carrying two marks : When caesium can be used in photoelectric cell while lithium cannot be?

CHHAYA PUBLICATION-MODEL QUESTIONS PAPER -SET I (SECTION II ) (GROUP C)
  1. The ionisation potential of H-atom is 13.6 eV. Calculate the ionisatio...

    Text Solution

    |

  2. Electron affinity of chlorine is greater than that of fluorine . Expla...

    Text Solution

    |

  3. Arrange the following species in increasing order of acidic strength :...

    Text Solution

    |

  4. 1st ionisation potential of Al is less than that of Mg- explain

    Text Solution

    |

  5. State the position of ""(33) Q in the periodic table.

    Text Solution

    |

  6. KHF(2) exists but KHCl(2) does not - explain .

    Text Solution

    |

  7. Arrange the bonds in increasing order of bond polarity : Br- Cl , B - ...

    Text Solution

    |

  8. A 15 L container containing 5.6 g of N(2) is fitted with another conta...

    Text Solution

    |

  9. At Boyle temperature , what is the value of compressibility factor of ...

    Text Solution

    |

  10. Write down the kinetic gas equation .

    Text Solution

    |

  11. Define surface tension of liquids . What is its unit in SI system ?

    Text Solution

    |

  12. 3 mol ideal gas expands isothermally & reversibly to 100 L at STP . ...

    Text Solution

    |

  13. Calculate the bond strength of O-H bond in O-H bond in H(2) O (g) from...

    Text Solution

    |

  14. Balance the chemical equation by ion-electron method : Cr(2) O(7)^(2-)...

    Text Solution

    |

  15. What is the oxidation number of Fe in Na(2) [Fe(CN)(5) NO] ?

    Text Solution

    |

  16. What is permutit ? What is degree of hardness of water ? What is the u...

    Text Solution

    |

  17. Which alkali metal is used in photoelectric cells ?

    Text Solution

    |

  18. How will you prepare : NaCl to Na(2) CO(3)

    Text Solution

    |

  19. Arrange cis-but-2-ene , trans-but-2-ene and but-1-ene in increasing or...

    Text Solution

    |

  20. What are electrophiles and nucleophiles ? Give examples

    Text Solution

    |