Cathode rays causes an object placed behind a perforated anode to cast a shadow on the screen. This observation shows that the rays?
- are positively charged
- are negatively charged
- have mass
-
travel in straight lines
The correct answer is: D
Explanation
Cathode rays travel in a straight line and can cast sharp shadows.
Cathode rays are negatively charged.
Electric field and magnetic field deflect cathode rays.
There is an explanation video available .