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What is the difference between lumen and kelvin when it comes to measuring the brightness and color of light?
Lumen measures the brightness of light, while kelvin measures the color temperature of light. Lumen indicates how bright a light source is, while kelvin indicates the color appearance of the light, such as warm or cool.
What is the difference between kelvin and lumens in terms of measuring light output?
Kelvin measures the color temperature of light, indicating whether it is warm or cool. Lumens measure the brightness of light, indicating how much light is emitted.
IN main sequence stars what is the relationship between brightness and temperature?
Brightness tells you the temperature and mostly temperature would tell the brightness of the star that we are talking about.
What is the relationship between brightness and temperature shown within the main sequence?
As temperature increases the absolute brightness increases
What does a thermocouple do and how does it function in measuring temperature?
A thermocouple is a device that measures temperature by detecting changes in voltage when there is a difference in temperature between two different metals. When one end of the thermocouple is heated or cooled, it creates a voltage that is proportional to the temperature difference. This voltage is then converted into a temperature reading by a thermometer or temperature controller.
What is the difference between thermocouple and RTD?
A thermocouple measures temperature difference between two points, producing a tiny voltage corresponding to the difference in temperature. To measure temperature with a thermocouple, you need to know the temperature of one junction and calculate the difference from the table or equation for the type of t/c used. An RTD changes resistance in response to temperature--to measure temperature with an RTD you measure its resistance (usually by putting a known voltage across it and measuring the current).
What is the difference between thermometer for air and temperature?
The thermometer is used to measure temperature whether it air, water, molten steel, anything you can think of. Scales of measuring Temperature are mainly Celsius , Fahrenheit and Kelvin
Who discovered the relationship between the star temperature and brightness?
Hertzsprung and Russell.
Who discovered the relationship between a star brightness and temperature?
Hertzsprung and Russell.
What is the difference between cm and inches?
The difference between centimeters and inches is that inches is in the standard measuring system and centimeters is part of the metric measuring system.
What is the difference between Celcius and Celsius, and how are they used in measuring temperature?
The correct spelling is "Celsius." Celsius is a unit of measurement for temperature, named after the Swedish astronomer Anders Celsius. It is commonly used in scientific and everyday contexts to measure temperature. "Celcius" is a misspelling of Celsius and does not have any specific meaning or usage in measuring temperature.
What is the difference in brightness between a 60W and 100W light bulb?
The 100W light bulb is brighter than the 60W light bulb. The difference in brightness is 40 watts.
