AIPMT PRELIMS2003Physics-Atomic Structure
AIPMT PRELIMS 2003 Physics Cathode Rays MCQ Question
Type: MCQ-conceptual-Medium-Class 11
J.J. Thomson's cathode-ray tube experiment demonstrated that
A
cathode rays are streams of negatively charged ions
B
all the mass of an atom is essentially in the nucleus
C
the e/m of electrons is much greater than the e/m of protons
D
the e/m ratio of the cathode ray particles changes when a different gas is placed in the discharge tube
Correct Answer
Option C
Detailed Explanation
J.J. Thomson's experiment showed that cathode rays are streams of electrons, which have a much greater e/m ratio compared to protons.
Found an issue with this question?