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We see different colours of light because of their different frequencies. White light is actually lots of different frequencies, you see a spectrum because when light diffracts (slows down and changes direction) each frequency diffracts by a different amount, some bend more than others. Because blue light is only one frequency it will not produce a spectrum, so all the light bends by the same ammount.
What else can I help you with?
A beam of white light shines through a glass prism in a darkened room to produce the colors of white light How would the pattern on the screen change if a pure red filter were placed in the path?
If a pure red filter is placed in the path of the white light, only the red component of the light would pass through, resulting in a pattern on the screen showing only shades of red. The other colors of the spectrum that were originally present would be blocked by the filter.
What is a natural phenomenon that exhibits a continuous spectrum?
A continuous spectrum is produced when white light passes through a prism or when hot gas is heated to incandescence. In either case the light is separated into its component colors based on their different wavelengths. All the colors of the visible spectrum from red to violet are present in the resulting continuous spectrum.When white light passes through a prism the individual wavelengths of light are bent at different angles separating the light into a spectrum. This is known as dispersion. The prism separates the wavelengths of light into visible colors with the shortest wavelength being the color red and the longest wavelength being the color violet.When hot gas is heated to incandescence the gas molecules become excited and emit light. The light produced is a continuous spectrum because all the wavelengths of visible light are present. The intensity of the emitted light varies with the wavelength with the shortest wavelength having the greatest intensity and the longest wavelength having the least intensity.
How come when you look through 2 magnifying glasses everything is upside down?
When we are looking through a magnifying glass from a position far away from the focus , a real image is formed which is inverted.This inverted image cannot be obtained on the screen.Hence we see the image upside down. However if we look through the magnifying glass at a position between the optical centre and focus a virtual,erect and magnified image will be formed.This can be obtained on the screen.
What electromagnetic spectrum is used for radio broadcasting?
Radio wave brings the information into the TV set from which the sound and pictureare reconstructed.Light wave carries the picture ("video") information from the screen to your eyes.
What are the colors of the visible spectrum from red?
Every color that you have ever perceived with your own eyes or heard mentioned or described by others, every hue of paint ever mixed, every glowing shade ever to appear on a TV screen or computer monitor, and every shade of fabric ever woven is in the visible spectrum, including thousands that have never been named because they so closely resemble others that have been. They range from deep red on one end, to bright violet on the other end, and on the way they pass through Orange, Yellow, Green, Blue, and Indigo ... just to name a few universally understood signposts.
What is an image obtained on the screen called?
An image obtained on the screen is called a display or a screen image. It refers to the visual output that is produced on a screen or monitor through the stimulation of pixels.
Why is a spectrum of different colours rather than a spot of white light appears on the screen?
A spectrum of different colors appears because white light is composed of different colors with various wavelengths. When light passes through a prism or diffraction grating, it gets dispersed, and each color refracts at a slightly different angle, resulting in the separation of the colors into a spectrum.
What color will be formed on the screen when white light is passed?
White light is passed through a prism, it will be separated into the various colors of the visible spectrum, creating a rainbow effect on the screen.
Is the spectrum for the incandescent light a continuous spectrum or a line spectrum?
incandescent bulb is equivalent to white light, i.e it has all the seven wavelengths of light. therefore when passed through a prism it is disperses into all the seven wavelengths WITHOUT ANY SPACES OR BOUNDARIES and are obtained on the screen as a CONTINUOUS SPECTRUM.
Differentiate real image from virtual image?
Real images can be obtained on the screen,whereas virtual images can't be obtained on the screen
Which image cannot be obtained an a screen?
An example of an image that cannot be obtained on a screen is a holographic image, which requires special technology to project a 3D image in space.
How can you tell what colors make up white light?
The classical experiment consists in directing sunlight through a glass prism onto a screen. Light in: invisible. Light out (and displayed on screen): full spectrum of visible colors.
Which brand of digital picture frame has the largest viewing screen?
Digital Spectrum MemoryVUE has a 17 inch screen.
Can the image formed by a plain mirror be obtained on a screen?
Plane mirrors do not create images that can be placed on a screen, only concave mirrors can.
Differences between output on a screen and a printer?
In some Microsoft programs, there is a screen font and a printer font. The text appears as the screen font while on the screen, but the printer receives the alloted text in the printer font. Hope that was useful. Also get rid of the 1 in front of the question.
Where are flat screen TVs sold?
A flat screen television can be obtained either online or in store. The most common businesses to buy a flat screen television from are stores specializing in electronics.
What is meant by real image can be obtained on a screen?
A real image that can be obtained on a screen is an image formed by actual light rays converging at a point on the screen. This kind of image can be captured on a physical surface as a result of the light rays coming together. It is different from a virtual image, which is the apparent position from which the light appears to diverge after reflection or refraction.
