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Is a blackboard opaque?
Yes, a blackboard is opaque because it does not allow light to pass through it. This characteristic makes it suitable for writing or drawing with chalk.
How can a Black board in a room stays at the same temperature as rest of the room?
A blackboard can stay at the same temperature as the rest of the room through a process called thermal equilibrium. When the blackboard is exposed to the room temperature, it absorbs heat energy from its surroundings. As it absorbs heat, it reaches the same temperature as the room through conduction, where heat is transferred through direct contact with the surrounding air. This equilibrium ensures that the blackboard does not feel significantly warmer or cooler than the room itself.
What kind of meter will measure the blackboard?
Blackboards are usually sized in centimeters.
Why does the blackboard color look or appear black?
The color black is absorbed by the surface of the blackboard, making it appear black. The dark surface also helps to provide high contrast with white chalk, making writing and drawings more visible.
Why does the blackboard seems black?
A blackboard appears black because it reflects very little light, absorbing most of the light that hits it. The dark color of the board helps to contrast with the white chalk used to write on it, making the writing clearly visible.
When was Blackboard Inc. created?
Blackboard Inc. was created in 1997.
What is the population of Blackboard Inc.?
The population of Blackboard Inc. is 1,780.
What are the advantages and disadvantages of blackboard learning system?
advantages and disadvantages of blackboard
What is the duration of Murder on the Blackboard?
The duration of Murder on the Blackboard is 1.18 hours.
What is the duration of Beyond the Blackboard?
The duration of Beyond the Blackboard is 1.67 hours.
When was the blackboard created?
Beyond the Blackboard was created on 2011-04-24.
Unit of measure of width of a blackboard?
Meter is used in finding the width of the blackboard.
How do you get on to blackboard?
Go to google and type in your state and blackboard and it should come up.
What width of a blackboard?
There is more than one size of blackboard...
How do you say blackboard in Chinese?
"Blackboard" in Chinese is 黑板 (Hēi băn)
What is the shape of blackboard?
Blackboard can be any shape you want. Most blackboards are rectangular.
What is the surface area of a blackboard?
The surface area depends on the height and width of the blackboard.
