Home
Class 12
PHYSICS
One requires 11eV of energy to dissociat...

One requires 11eV of energy to dissociate a carbon monoxide molecule into carbon and oxygen atoms. The minimum frequency of the appropriate electromagnetic radiation to achieve the dissociation lies in

A

visible region

B

infrared region

C

ultraviolet region

D

microwave region

Text Solution

Verified by Experts

The correct Answer is:
C
Energy E = hv
`therefore v=(E )/(h)=(11eV)/(6.62xx10^(-34)Js)`
`therefore v=(11xx1.6xx10^(-19)J)/(6.62xx10^(-34)Js)`
`therefore v=2.6586xx10^(15)Hz`
which is in ultraviolet region.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise SECTION C NCERT EXEMPLAR SOLUTION (Very Short Answer Type Questions)|7 Videos

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise SECTION C NCERT EXEMPLAR SOLUTION (Short Answer Type Questions)|9 Videos

  • ELECTROMAGNETIC WAVES

    KUMAR PRAKASHAN|Exercise SECTION B NUMERICALS (Numerical From .DARPAN. Based On Textbook)|12 Videos

  • ELECTROMAGNETIC INDUCTION

    KUMAR PRAKASHAN|Exercise Section D MCQs (MCQs asked in Competitive Exams )|38 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    KUMAR PRAKASHAN|Exercise Section D ( MCQs asked in Cometitive Exams )|39 Videos

Similar Questions

Explore conceptually related problems

A single electron orbits a stationary nucleus of charge + Ze , where Z is a constant and e is the magnitude of electronic charge . It requires 47.2 eV to excite . Find a the value of Z b the energy required to excite the electron from the third to the fourth Bohr orbit. the wavelength of electromagnetic rediation required to remove the electron from the first Bohr orbit to infinity. d Find the KE,PE , and angular momentum of electron in the first Bohr orbit. e the redius of the first Bohr orbit [The ionization energy of hydrogen atom = 13.6 eV Bohr radius = 5.3 xx 10^(_11) m , "velocity of light" = 3 xx 10^(-8)jm s ^(-1) , Planck's constant = 6.6 xx 10^(-34)j - s]

As per Bohr model, the minimum energy (in eV) required to remove an electron from the ground state of double ionized Li atom (Z = 3) is

Knowledge Check

  • In carbon monoxide molecule distance between carbon and oxygen atom is 1.1Å . If mass of carbon atom is 12 amu and oxgyen atom is 16 amu where does the centre of mass of molecule lie?

    A
    at a distance of `6.3Å` from a carbon atom
    B
    at a distance of `1Å` from a oxygen atom
    C
    at a distance of `0.63Å` from a carbon atom
    D
    at a distance of `0.12Å` from a oxygen atom

    • Similar Questions

    Explore conceptually related problems

    One ,odel is obtained from scu water 11.9 C^(14) atoms disssociate from 1 gm carbon 15.3 C^(14) atoms dissociate from live model then model was how many years old ? t_((1)/(2)) =5730 years

    Home
    Profile