1.

Assertion. Cathode rays originate from the cathode and move towards andoe. Reason. Electrons present in the material of the cathode are continuously emitted on applying high voltage

Answer»

If both assertion and reason are true, and reason is the true EXPLANATION of the arrertion
If both assertion and reason are true, but reason is not the true explanation of the assertional
If assertion is true, but reason is false
If both assertion and reason are false

Solution :Correct A. Cathode rays do not ORIGINATE from cathode but are produced by the knock out of ELECTRONS of the atoms of the gas PRESENT in the discharge tube.
Correct R. Electrons are CONTINUOUSLY produced from the atoms of the gas present in the discharge tube.


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