Which of the following is never true for cathode
rays ?
(a) They possess kinetic energy
(b) They are electromagnetic waves
(c) They produce heat
(d) They produce mechanical pressure.
Answers
Answered by
5
Answer:
d they produce mechanical pressure
Answered by
10
(b) They are electromagnetic waves
Explanation:
Cathode rays cannot be regarded as electromagnetic waves. Cathode rays are electrons that were accelerated and focused in a cathode ray tube. Like all matter, electrons can be regarded as a wave, but not as an electromagnetic wave. Whereas Photons are electromagnetic waves. They are quantums of energy with no mass.
Hence Option B is the answer.
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