In the phenomenon of electric discharge through gases at low pressure , the coloured glow in the tube appears as a result of

When electric discharge is pressed through neon at low pressure, the colour of the glow is

When electric discharge is passed through neon at low pressure the colour of the glow is

Colour in discharge tube filled with gas at low pressure is due to …

Assertion : Light is produced in gases in the process of electric discharge through them at high pressure. Reason : At high pressure electrons of gaseous atoms collide and reach and excited state.

Assertion (A), study of discharge of electricity through gases at low pressure resulted in the discovery of cathod rays . Reason (R ): cathod rays are deflected by both magnetic and electric fields and the direction of deflection shows that they are nagatievly charged .

Glow in discharge tube is due to