If it's a *Crookes* tube you're asking about, it's a discharge tube because the applied electrical field causes ionization and a resulting discharge of energy in the form (mostly) of light, depending on the gas or gases in the tube.
He is a scientist who modified and experimented with discharge tube
At very low pressure in a discharge tube, there are fewer gas atoms present to ionize and produce light. This results in fewer collisions and less emission of visible light, causing the discharge tube to appear dark.
A discharge tube is a type of gas-filled tube that emits light when an electric current passes through it, commonly used in neon signs or plasma displays. On the other hand, a tube light is a type of fluorescent lamp that uses a phosphor coating inside a glass tube to produce light. While both types of tubes rely on gas and electric current to produce light, they differ in their construction and application.
The orifice tube is located in the line at the condenser discharge connection.
why it is necessary to decrease the pressure in the discharge tubbe to get cathode rays
greenish glow or fluorescence
Johann Wilhelm Hittorf, a German physicist, is credited with discovering the gas discharge tube in the mid-19th century. His experiments with cathode rays in partially evacuated tubes laid the foundation for the development of early gas discharge tubes.
The spectrum emitted by a discharge tube typically consists of discrete lines corresponding to the characteristic emission wavelengths of the elements or gases inside the tube. This emission spectrum results from the de-excitation of electrons in the atoms or molecules within the tube when they return to lower energy levels, emitting photons of specific energies. This emission pattern is unique to each element or gas, enabling scientists to identify the substances present in the discharge tube.
When the pressure is reduced in a discharge tube, the mean free path of the gas molecules increases. This allows the gas molecules to gain more energy and move freely, colliding with the charged particles in the discharge tube and facilitating the flow of electric charge. As a result, the gases become partially ionized, creating a conductive path for the electricity.
deflected away from a negative plat
Ddischarge tube led to the discovery of Cathode rays (electrons) and Positive rays (protons) so this discovery of cathode rays and positive rays can be considered as conse quences of discharge tube.