Photoelectric EffectHard
Question
Two electrons starting from rest are accelerated by equal potential difference.
Options
A.they will have same kinetic energy
B.they will have same linear momentum
C.they will have same de Broglie wave length
D.they may produce x-rays of same minimum wave length when they strike different targets.
Solution
Kinetic energy of an electron is given by
k =
mv2 = eV = same for both electron
Where V = speed of electron
V = Potential difference
Linear momentum of two electron may be different, in direction but their magnitude i.e. mv =
will be same. De-Broglie wavelength is given by
λ =
= same for both electrons
Minimum wavelength of produced x-rays is given by
λmin =
= same for both electrons.
k =
mv2 = eV = same for both electronWhere V = speed of electron
V = Potential difference
Linear momentum of two electron may be different, in direction but their magnitude i.e. mv =
will be same. De-Broglie wavelength is given byλ =
= same for both electronsMinimum wavelength of produced x-rays is given by
λmin =
= same for both electrons.Create a free account to view solution
View Solution FreeMore Photoelectric Effect Questions
A hole is made at the bottom of the tank filled with water (density 1000 k g / m3). If the total pressure at the bottom ...The kinetic energy of most energetic electrons emitted from a metallic surface is doubled when the wavelength of the inc...The wavelength of Kα-line characteristic X-rays emitted by an element is 0.32. The wavelength of Kβ-line emitt...The energy of a photon of light with wavelength 5000 is approximately x eV. This way the energy of an X-ray photon with ...If the frequency of Kα X-ray emitted from element with atomic number 31 is f, then the frequency of Kα X-ray e...