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What happens to the molecules of the trapped gas when its height in the tube becomes zero?
When the height of the trapped gas in the tube becomes zero, the gas molecules continue to move freely within the tube. Since no more gas can flow into or out of the tube, the pressure inside the tube increases. The gas molecules exert pressure on the walls of the tube evenly in all directions.
How does a volume gas thermometer owrk?
Gases expand or contract when heated or cooled. The main part of the thermometer has a 'large' bulb containing a gas connected by a hose to a tube filled with liquid. The expansion or contraction of the gas causes the liquid level to move this indicates the temperature.
What is a vacuum discharge tube?
A closed vessel having electrodes at either end and containing agas at low pressure. When a sufficient voltage is applied to theelectrodes, an electric current flows through the gas. Dischargetubes can be used to prevent current flow below a certainvoltage; they can also function as lamps by the use of ionizinggas, which glows when current flows through the tube.
How did Robert Boyle experiment to find out Boyle's Law?
Robert Boyle's experiment involved using a J-shaped tube filled with mercury and a fixed amount of air. By varying the pressure and volume of the air in the tube, Boyle observed that the pressure and volume of a gas are inversely proportional when the temperature is held constant. This led to the formulation of Boyle's Law: the pressure of a gas is inversely related to its volume at a constant temperature.
What is quenching in Geiger muller tube?
A small amount of vapours of a substance having low ionization potential, called as quenching gas, eg alcohol vapours, is added to gm tube, which discharges at cathode before the principle gas +ve ions which discharges at cathode in about 10^-4 seconds. So the quenching gas neutralizes itself and also the tube....
What A low pressure gas filled glass tube which generates a glowing beam between cathode and anode?
Cathode ray.
How would the electrons produced in a cathode ray tube filled with neon gas compare with the electrons produced in a cathode ray tube filled with chlorine gas?
JJ Thompson passed an electric current through a gas at low pressure from the negative terminal to the positive terminal then decided that the ration is always the same regardless the gas used.
How does cathode rays ionise the gas which is filled inside a distarge tube?
i did not get arelavent answer
Stream of electrons produced at the negative electrode of a tube containing a gas at a low pressure?
cathode ray
How would the electrons produced in a cathode ray filled with neon gas compare with the electrons produced in a cathode ray filled with chlorine gas?
the results are the same regardless of the gas
A cathode ray produced in a gas-filled tube is deflected by a magnetic field A wire carrying an electric current can be pulled by a magnetic field A cathode ray is deflected away from a negatively?
A cathode ray in a gas-filled tube is deflected by a magnetic field due to the Lorentz force acting on the charged particles in the ray. A wire carrying an electric current can be pulled by a magnetic field through the interaction of the magnetic field and the moving charges in the wire. A cathode ray is deflected away from a negatively charged object due to the repulsion between the negatively charged object and the negatively charged particles in the cathode ray.
Which gas is used in discharge tube for the study of cathode rays?
The gas commonly used in discharge tubes for the study of cathode rays is low-pressure neon or argon. These gases allow for the observation of cathode rays because they ionize easily and produce visible light when the cathode rays collide with them. This ionization helps to create observable effects that demonstrate the properties of cathode rays, such as their trajectory and charge.
What is the function of tube light?
The function of tube light is to give energy in the form of heat and light. It enables us to see objects in the dark. Do you want to know how light tube glows? When we supply the power to the tube lite, the cathode of the tube rod gets heated up. The inner surface of the tube rod is covered with phosphuorent * fluorescent) and is filled with gas under less pressure. Gas can be Neon, Krypton or Argon. When the tungsten heats up it also excites the electrons of the fluorescent. During excitation and de-excitation, energy in the form of light is released. The wavelength of that light lies in the visible range of our eyes. Since air under less pressure becomes conducting, it conducts electrons from one side to the other, thus creating an anode and a cathode.
Why does a cathode ray tube have low pressure inside?
Low pressure inside a cathode ray tube? How about nopressure inside the tube! In a cathode ray tube, the "cathode ray" is an electron beam that is used to paint a "picture" on the phosphor coating on the inside of the tube. (We look at the "picture" from the other side of the glass on which the coating is laid down - the outside.) An electron is a lightweight little dude. It weighs about 1/1836th as much as a single proton, so anything, any gas atoms that are in the flight path of an electron will cause it to scatter. That means we need to pump all the air out of the inside of the tube. After we remove all we can, we fire a "getter" (a chemical coated onto a small area inside the tube) which will bind any remaining gas molecules left inside the tube to complete the evacuation process. No more pesky atoms to get in the path of the electron beam and scatter it all over the place.
What instrument measures the pressure in an enclosed container of gas?
A manometer is used to measure pressure in an enclosed container of gas. It typically consists of a U-shaped tube filled with liquid that reacts to changes in pressure inside the container. The liquid level in the arm of the manometer connected to the container will rise or fall based on the pressure, providing a measurement of the gas pressure.
What sensors does a geiger counter have?
One Geiger-Muller tube. This is a low pressure gas filled cold cathode electron tube operated by avalanche ionization. The cathode is a thin walled metal cylinder, the anode is a stiff metal wire running down the central axis of the cylinder, if the tube is to be sensitive to alpha radiation the far end is capped with a single thickness of mica, the near end of the tube is capped and a 2 wire cable runs from there to the counter. When a particle of ionizing radiation enters the tube it triggers an ionization avalanche between the cathode and anode with a current gain around 10,000 (10,000 negative ions hitting the anode for each ionizing particle entering the tube with an equal number positive ions hitting the cathode). The counter then counts these pulses of current to estimate the level of radioactivity.
What kind of apparatus did Boyle use to determine that relationship?
Boyle demonstrated this relationship using a U-shaped tube sealed at one end. The tube had mercury added to it so that a volume of gas was trapped at the sealed end of the tube; the gas thus was compressed by atmospheric pressure and the pressure from the column of mercury. Boyle poured mercury into the open end of the U-tube and measured the change in volume of the trapped gas as the applied pressure increased.
