write some properties of cathode rays.
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Properties of Cathode Rays :
- They travel from the cathode to the anode in straight lines .
- They cause a greenish yellow fluorescence on a soda glass screen placed in the tube .
- They penetrate through matter
- They cause ionization of the gas through which they pa.ss .
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♧Question♧
- write some properties of cathode rays.
♧Answer♧
☆The properties of cathode rays are as follows:
- The ray travel in a straight lines perpendicular to the cathode surface.
- The can cast a sharp shadow of an opaque object if placed in their path.
- The are deflected towards positive plate in an electric field showing that they are negatively charged.
- They rises the temperature of the body on which they fall.
- J.J.Thomas discovered their charge/mass (e/m) ratio.
- Light is produced when these rays hit the wall of the discharge tube.
- It was found that the same type of rays were emitted no matter which gas and which cathode are used in the discharge tube.
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