Home
Class 11
CHEMISTRY
What is the value of Planck's constant...

What is the value of Planck's constant

A

`6.626 xx 10^(-27)Js`

B

`6.626 xx 10^(-34)Js`

C

`6.023 xx 10^(23)Js`

D

`1.602 xx 10^(-19)Js`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Objective Exericse - 2A|85 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Objective exercise - 2B|64 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Subjective Exercise - 3 (Short answer questions)|34 Videos

  • AROMATIC HYDROCARBONS

    AAKASH SERIES|Exercise OBJECTIVE EXERCIES - 3 (RECENT AIPMT/NEET QUESTIONS)|10 Videos

  • CHEMICAL BONDING

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE -3 (RECENT AIPMT/NEET QUESTIONS )|39 Videos

Similar Questions

Explore conceptually related problems

In an experiment on photoelectric effect , the slope of the cut - off voltage versus frequency of incident light is found to be 4.12 xx 10^(-15) V s . Calculate the value of Planck's constant.

What is the value of gas constant R in J mol^(-1 ) K^(-1) ?

The uncertainity in the position and velocity of a particle are 10^(-10)m and 5.25 xx 10^(-24) ms^(-1) . What is the mass of the particle? (Value of Planck's constant is 6.6xx10^(-34)Js )

The value of Planck's constant in SI unit is

In photoelectric the slope of the straight line graph between stopping potential and frequency of incident radiation gives the ratio of Plancks constant to

The ratio of the dimension of Planck's constant and that of the moment of inertia is the dimension of :

Initially a photon of wavelength lambda_(1) falls on the photocathode and emits of maximum energy E_(1) .If the wavelength of the incident photon is changed to lambda_(2) the maximum energy of the electron emitted becomes E_(2) .Then value of he (h=Planck's constant,c= velocity of light) is

Value of gas constant (R) is

AAKASH SERIES-ATOMIC STRUCTURE-Objective exercise - 1
  1. Which of the following is not an electromagnetic radiation ?

    Text Solution

    |

  2. A particle revolves round a circular path. The acceleration of the par...

    Text Solution

    |

  3. What is the value of Planck's constant

    Text Solution

    |

  4. Of the following properties of a wave, the one that is independent of ...

    Text Solution

    |

  5. The radiation with highest wave number

    Text Solution

    |

  6. Which of the following relates to photon both as wave motion and as a ...

    Text Solution

    |

  7. Alkali metals used in photoelectric cells

    Text Solution

    |

  8. The energy required to excite the electron from ground state of hydrog...

    Text Solution

    |

  9. Kinetic energy of photoelectrons is independent on-------- of incident...

    Text Solution

    |

  10. Assertain (A): K, Rb and Cs form superoxides. Reason (R) : The stabil...

    Text Solution

    |

  11. If the wavelength of an electromagnetic radiation is 2000 A. what is i...

    Text Solution

    |

  12. The energy of a photon is 3 xx10^(-12)erg.What is its wavelength in nm...

    Text Solution

    |

  13. The frequency associated with photon of radiation having a wavelength ...

    Text Solution

    |

  14. The wave number of the radiation whose quantum is 1 erg is

    Text Solution

    |

  15. A sound wave is sent into a gas pipe . Does its internal energy change...

    Text Solution

    |

  16. A wave has a frequency of 3 xx 10^(15) sec^(-1). The energy of that ph...

    Text Solution

    |

  17. Calculate wave number

    Text Solution

    |

  18. The energy of an electromagnetic radiation is 19.875 xx 10^(-13) ergs....

    Text Solution

    |

  19. According to the Moseley's law, the frequency of a spectral line in X-...

    Text Solution

    |

  20. Antibiotic obtained from lichens is

    Text Solution

    |