Question

Write two properties of cathode rays

Answer 1

#BAL

i.  they travel in straight lines.

 

    ii.            Cathode rays possess momentum and kinetic energy.

 

 iii.            Cathode rays produce heat, when allowed to fall on matter.

 

 iv.            Cathode rays produce fluorescence when they strike a number of crystals, minerals and salts.

 

    v.            When cathode rays strike a solid substance of large atomic weight, X-rays are produced.

 

 vi.            Cathode rays ionize the gas through which they pass.

 

vii.            Cathode rays affect the photographic plates.

viii.            The cathode rays are deflected from their straight line path by both electric and magnetic fields. The direction of deflection shows that they are negatively charged particles.

 

ix         Cathode rays travel with a velocity upto (1/10)th of the velocity  of light.

 

 x.            Cathode rays comprises of electrons which are fundamental constituents of all atoms.