Atomic StructureHard
Question
Identify the correct statement(s) :
Options
A.Wavelength associated with the 1 kg ball moving with the velocity 100 m/s can′t be calculated.
B.Wave nature of the running train is difficult to observe because wavelength is extremely small.
C.Wavelength associated with the electron can be calculated using the formulae E = 
D.If an electron is accelerated through 20 V potential difference if it has already 5eV kinetic energy then wavelength of the electron is approximately √6 
.
.Solution
(A) λ can be calculated as : λ = 
= 6.626 × 10-36 m. (very small).
(B) de-Broglie wavelength associated with macroscopic particles is extremely small and so, difficult to observe.
(c) de-Broglie wavelength associated with electron can be calculated by using λ =
.
(D) KEf = 5 + 20 = 25 eV.
∴ λ =
= 6.626 × 10-36 m. (very small).(B) de-Broglie wavelength associated with macroscopic particles is extremely small and so, difficult to observe.
(c) de-Broglie wavelength associated with electron can be calculated by using λ =
.(D) KEf = 5 + 20 = 25 eV.
∴ λ =
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
A certain molecule has an energy level diagram for its vibrational energy in which two levels are 0.0141 eV apart. The w...Which of the following particle is not deflected in the magnetic field?...The orbital angular momentum for an electron revolving in an orbit is given by . This momentum for an s-electron will be...The average lifetime of an electron in an excited state of hydrogen atom is about 10–8 s. How many revolutions does an e...Which one is a wrong statement ?...