Home
Class 11
CHEMISTRY
Calculate the wavelength of a photon (in...

Calculate the wavelength of a photon (in nm) having enerrgy of 1eV.

Text Solution

Verified by Experts

Energy of 1 photon, `E=1eV=1.6xx10^(-19)J`
`E=hv=h(c)/(lamda)`
or, `lamda=(hc)/(E)=((6.626xx10^(-34)J*s)xx(3xx10^(8)m*s^(-1)))/(1.6xx10^(-19))`
`=12.35xx10^(-7)m=(12.35xx10^(-7))/(10^(-9))nm=1235nm`
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    CHHAYA PUBLICATION|Exercise WARM UP EXERCISE|157 Videos

  • STRUCTURE OF ATOM

    CHHAYA PUBLICATION|Exercise QUESTION ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)|28 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    CHHAYA PUBLICATION|Exercise PRACTICE SET|10 Videos

Similar Questions

Explore conceptually related problems

Calculate the wave length of photon having energy 2'ev.

Calculate wavelength of a photon having energy 1.2 ev. (1 ev = 1.601 xx 10^(-19) Joule)

Calculate the mass of a photon with wavelength 3.6 Å.

The de Broglie wavelength of an electron moving with a velocity c/2 (c =velocity of light in vacuum) is equal to the wavelength of a photon. The ratio of the kinetic energies of electron and photon is

A photon of wavelength 4xx10^(-7)m strikes on metal surface, the work function of the metal being 2.13 eV. Calculate (1) the energy of the photon (eV). (2) The kinetic energy of the emission.

Calculate the de Broglie wavelength of an electron of kinetic energy 500 eV.

Calculate the wavelength of an electron in a 10 MeV particle accelerator (1 MeV = 10^6eV) .

Calculate the velocity of an electron having wavelength of 0.15 nm Mass of an electron is 9.109xx10^(-28) g (h=6.626 xx10^(-27) erg-s)

Calculate the velocity of an electron having wavelength of 0.15 nm Mass of an electron is 9.109xx10^(-28) g (h=6.626 xx10^(-27) erg-s)

The ground state energy of hydrogen atom is -13.6 eV . If an electron makes a transition from an energy level -1.51 eV to -3.4 eV, calculate the wavelength of the spectrum line emitted and name the series of hydrogen spectrum to which it belongs.