State one reason each why cathode rays: (a) are not electromagnetic waves; (b) cast sharp...
PHYSICS
WAEC 2010
State one reason each why cathode rays:
(a) are not electromagnetic waves;
(b) cast sharp shadows of objects in their path;
(c) can rotate a light paddle wheel inside a discharge tube.
Explanation
The reasons are:
(a) deflected by electric or magnetic fields.
(b) travel in straight lines or paths.
(c) possess momentum.
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