Q. Consider the following statements concerning electrons : I. Electrons are universal constituents of mater. II. J J Thomson received the very first Nobel prize in Physics for discovering the electron. III. The mass of the electron is about 1/2000 of a neutron. IV. According to Bohr the linear momentum of the electron is quantised in the hydrogen atom. Which of the above statements are not correct?
A) I
B) II
C) III
D) IV
Explanation
(d) The mass of electron is about $\frac{1}{1836}$ times that of a neutron and angular momentum of electron is quantised in the hydrogen atoms but not the linear momentum of electron
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.