Properties of Cathode Rays (i) Cathode rays are not electroma | JEE NEET MATERIALS

Properties of Cathode Rays
(i) Cathode rays are not electromagnetic rays.

(ii) Cathode rays are deflected by electric field and magnetic field.

(iii) Cathode rays produce heat in metals when they fall on them.

(iv) Cathode rays can pass through thin aluminium or gold foils without puncturing them.

(v) Cathode rays can produce physical and chemical change.

(vi) Cathode rays travel in straight line with high velocity
momentum and energy and cast shadow of objects placed in
their path.

(vii) On striking the target of high atomic weight and high melting point, they produce X-rays.

(viii) Cathode rays produce fluorescence and phosphorescence in
certain substance and hence affect photographic plate.

(ix) Specific charge of an electron was determined by JJ Thomson using perpendicular magnetic and electric field applied on a beam of electrons, at the same place.

(x) Specific charge of electron e/m = E^2/V^2B^2 where, E = electric field, B = magnetic field and V = potential difference applied across ends of tube.

(xi) The value of specific charge of an electron is1.7589 ×10^11 C/kg.