Question

The constancy of $\frac{e}{m}$ ratio for electrons inspite of variation of gas present in the discharge tube or of the material of the cathode shows that

• A. electrons are negatively charged
• B. electrons are universal constituents of matter
• C. electrons are the lightest of all particles
• D. Mass of the electrons is $\frac{1}{1838}$ of the mass of H-atom

Answer 1

The correct option is B electrons are universal constituents of matter

Constancy of $\frac{e}{m}$ ratio for electrons shows that the electrons are universal constituent
particles