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What else can I help you with?
How does the sun emit light?
the photoshpere emits visible light
A television screen is light gray when not illuminated This being so how is the blackness of sunspots similar to the blackness in images on a television screen?
Assuming CRT type display then when a black part is shown then if you just look at the black part with the rest of the picture covered or sheilded then you will see that the black is still grey or same as when tube is not illuminated. Bottom line-- no such thing as black on screen , only black compared to rest of picture ! I invite you to try it ! Pete
Name any luminous bodies?
Luminous objects are things that let out light without the help of anything else. Examples are:The SunGlow wormsLight bulbsGlow sticksStarsLighted candlesSparksFlamesHeating coilsLEDsTV ScreensDischarge tube
What color are the cooler stars?
Colder stars emit red light. Hot stars emit large amounts of green light with small amount of red and blue light, which balances out to a white color in human eyes.
How tall and long is a 42 diagonally measured TV?
To determine the measurements of a 42 inch flat screen television converted to the metric system, one must convert the dimensions of the television from inches to centimeters. The metric measurement of a 42 inch flat screen tv would be 106.68 centimeters.
How does a television change to electrical energy into light energy?
A television screen contains millions of tiny light-emitting diodes (LEDs) or liquid crystals that emit light when an electrical current passes through them. The electrical energy powers these components, causing them to emit light and display images on the screen.
Do televisions give off luminescent light?
No, televisions do not emit luminescent light. They use LED or LCD technology to produce light and display images on the screen. Luminescent light refers to light emitted by a substance without being heated.
How does a plasma TV emit blue light?
NO
How does a TV screen work to display images and videos?
A TV screen works by using pixels that emit light to create images and videos. These pixels are arranged in a grid and change color and brightness to form the desired picture. The screen is illuminated by a backlight, and the colors and brightness are controlled by electronic signals from the device playing the content.
What produces the light to make images on a television?
Cathode Ray TubeLight is produced when electrons emitted from the back of the tube strike the front of the screen,and light up the phosphor coating .PlasmaExcitation of a gas by high voltageLCDCold cathode florescent lamps, placed behind the LCD screenLCD LEDWhite LED's placed behind the LCD screenOLEDLight emitting diodes. Light is generated by passing current across a PN junction of specially doped material, which causes electrons to change valence level and emit light.
Is it possible to create a computer screen that does not need to emit light to function?
No, that is not possible.
Do LCD screen emit radiation?
An LED TV does emit radiation. However, the amount is very small and not considered harmful. The radiation from an LED television is much less than the radiation that was emitted from older television models.
Give examples of luminous object?
sex
What is a LED TV?
An LED TV is a television that uses light emitting diodes to create light and colors on the screen. Within the LED television screen are very small collections of electrical diodes that can turn red, green, or blue, and can increase or decrease in brightness depending on the current that is applied. From a distance, these diodes combine to create a range of full colors. LEDs require far less electricity than CRT monitors and emit less radiation. Unlike a CRT television, some LEDs change color when viewed from an angle.
When an object is placed near a screen why is there no image formed?
This is due to the way that light rays bend. When the image is close to the screen, the light rays reflect off the mirror and do not converge or diverge. Rather than travel perpendicular to each other, the light rays travel parallel?æto each other. This does not allow an image to form.
What colours are used in a color tv-set to obtain white light on the screen?
The 'pixels' on a TV screen are red, blue, and green.
What emits light?
alot of things emit light. There are things such as candles, fireflies, televisions, computers, flashlights, cigar lighters, campfires, lasers, and much much more!!
