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Subjects
Chemistry CBSE Live product
Class 9 (2026-27)
Journey Inside the Atom
History of Atomic Theory
3.
Cathode and canal rays
Question:
1
m.
Select
the
best option
:
Assertion (A):
J. J. Thomson used high voltage and low gas pressure in the discharge tube experiment.
Reason (R):
High voltage and low pressure helped produce cathode rays in the tube.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is false but R is true
A is true but R is false
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