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The tube of a thermometer is usually filled with a liquid, commonly Mercury or alcohol dyed with color for visibility. Mercury is favored for its wide liquid range and uniform thermal expansion, while alcohol is used for lower temperatures due to its lower freezing point. The liquid expands and contracts with temperature changes, allowing for accurate readings on the scale marked along the tube.
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What is the apparatus of thermometer?
A typical thermometer consists of a glass tube filled with a liquid (usually mercury or alcohol) that expands and contracts with changes in temperature. The tube is usually marked with a scale for reading the temperature, and there may be a bulb at the bottom to sense the temperature.
What are the materials used for a Galileo thermometer?
A Galileo thermometer is a thermometer made of a sealed glass cylinder containing a clear liquid and a series of objects whose densities are such that they rise or fall as the temperature changes.
Who invented the first closed tube thermometer?
Galileo Galilei is credited with inventing the first closed tube thermometer in the early 17th century. His design consisted of a glass tube filled with liquid and sealed at both ends, using changes in liquid volume to indicate changes in temperature.
What was the first liquid used in a thermometer?
The first liquid used in a thermometer was likely alcohol, specifically ethanol. Alcohol has a low freezing point and a wide range of expansion when heated, making it suitable for use in early thermometers.
The liquid in a thermometer move up the glass tube when the air temperature?
The liquid in a thermometer rises in the glass tube when the air temperature increases due to thermal expansion. As the temperature rises, the liquid (usually mercury or alcohol) absorbs heat and expands, occupying more space and causing it to move upward in the tube. This movement allows the thermometer to accurately reflect the ambient temperature. Conversely, when the temperature drops, the liquid contracts and moves down the tube.
What is the apparatus of thermometer?
A typical thermometer consists of a glass tube filled with a liquid (usually mercury or alcohol) that expands and contracts with changes in temperature. The tube is usually marked with a scale for reading the temperature, and there may be a bulb at the bottom to sense the temperature.
What is a mercury filled glass tube that measures air temperature called?
A mercury-filled glass tube that measures air temperature is called a mercury thermometer.
What is thermometer made up of?
In this answer I m referring to the normal thermometers. Not the electronic thermometers. There is a very very thin capillary tube incide the thermometer which is filled with mercury and it has a bulb aT one end. When it touches a surface, the mercury expands, rises in the capillary and the temperature is shown.
How does a fluid expansion thermometer work?
A fluid expansion thermometer consists of a bulb filled with a liquid, typically mercury or alcohol, connected to a capillary tube. As the temperature increases, the liquid in the bulb expands and rises up the capillary tube. The temperature is read by measuring the height of the liquid in the tube, which corresponds to the temperature scale on the thermometer.
What is liquid-in-glass thermometer?
A liquid-in-glass thermometer is a type of thermometer that consists of a glass tube filled with a liquid, typically mercury or alcohol, which expands or contracts with changes in temperature. The level of the liquid in the tube corresponds to the temperature, allowing for temperature measurement.
What is the construction of mercury thermometer?
A typical mercury thermometer consists of a glass tube with a bulb at one end filled with mercury. As the temperature changes, the mercury expands or contracts, causing it to rise or fall in the tube. The temperature is then read based on the level of the mercury within the graduated scale on the tube.
What are the materials used for a Galileo thermometer?
A Galileo thermometer is a thermometer made of a sealed glass cylinder containing a clear liquid and a series of objects whose densities are such that they rise or fall as the temperature changes.
Who invented the first closed tube thermometer?
Galileo Galilei is credited with inventing the first closed tube thermometer in the early 17th century. His design consisted of a glass tube filled with liquid and sealed at both ends, using changes in liquid volume to indicate changes in temperature.
How does a thermometer look like?
A thermometer typically consists of a glass tube with a bulb at one end filled with a liquid, usually mercury or colored alcohol. The tube is marked with a scale that indicates temperature readings in degrees Celsius or Fahrenheit. Some modern thermometers are digital, featuring a display that shows the temperature electronically. Overall, they are designed to be easy to read and handle.
How does a liquid-filled thermometer measure temperature accurately?
A liquid-filled thermometer measures temperature accurately by using the principle that liquids expand or contract with changes in temperature. As the temperature increases, the liquid inside the thermometer expands and rises up the tube, providing a visual indication of the temperature. Conversely, as the temperature decreases, the liquid contracts and moves down the tube. The markings on the thermometer scale correspond to specific temperature values, allowing for accurate measurement.
What is the working and construction of thermometer?
WORKING: Place the bulb of the thermometer filled with mercury in a vessel ov small pieces of ice the mercury will arise in the tube and will come to rest at a certain point.this point shows the melting point of ice. CONSTRUCTION:A thermometer consists of a glass bulb filled with mercury.A cappilary tube arises from this bulb.Due to the narrow bore of the tube a small change in the volume of the mercury becomes significiantly visible.
Describe the structure of a thermometer?
The thermometer consists of a very fine glass tube having a very small bore and is called capillary tube. At one end of capillary tube a very thin glass bulb is provided. The bulb is filled with mercury( most of the times) or alcohol The other end of capillary tube is sealed. The capillary tube is protected by a thick glass tube called stem. On the stem are made markings. These markings are called graduations or degrees.
