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How can pathology affect the image in terms physics on medical ultrasound?
Some pathology will affect the image on medical ultrasound because it will reflect or absorb sound waves differently from the surrounding tissue, making a light or dark image on the screen that makes the pathology visible.
What are the characteristics of display devices?
General CharacteristicsIn the CRT (cathode-ray tube) of a computer or video monitor an electron beam moves back and forth across the back of the screen. Each time the beam makes a pass across the screen, it lights up phosphor dots (pixels) on the inside of the glass tube, thereby illuminating the active portions of the screen. By drawing many such lines from the top to the bottom of the screen, it creates an entire image. A color CRT uses three electron guns which activate red light-emitting, green light-emitting, and blue light-emitting phosphors.Abhishek JaiswalMCA IEM Kolkata
What lets only some light through and makes an image unclear?
Frosted glass is an object that only lets some light through and makes an image unclear. This is due to the subtle transparency that is visible within this object.
What happens to light rays move from water to air?
what happens is that lenses bend light in a way that makes an image
Who makes car dvd monitors with at least 9" screen size?
You can get a 10.2 display from Audiovox. Almost everyone makes 9" inch displays for car dvds.
In a light microscope the lenses does what to the image?
makes objects look closer than they appear
How does HTML allow you to insert an image on a page with an alternate text if the image is not loaded?
You use the alt attribute on the image tag. The alt attribute takes a short description of the image for its value. For instance:If the browser failed to load the image (for instance, if it wasn't present on the server where I said it was) or if it had images turned off, or if were a screen-reader used by the visually impaired, then the alt text is display/read.The W3C makes an alt attribute a requirement on all valid IMG tags since HTML 4.01.
What are the dots of light on a computer screen called?
The dots of light on a computer screen are called pixels. The term "pixel" is short for "picture element" and refers to the smallest unit of a digital image or display. Each pixel is a tiny square that emits light and combines with other pixels to form the images and text that you see on the screen. The resolution of a screen is determined by the number of pixels it contains horizontally and vertically.
What makes a mirror reflect an image?
A mirror reflects an image due to the law of reflection, which states that the angle of incidence of light hitting the mirror is equal to the angle of reflection. When light rays from an object hit a mirror, they bounce off it and form an image by preserving the direction of the light rays.
How do plane mirrors form a virtual image?
Plane mirrors form a virtual image by reflecting light rays in such a way that they appear to be coming from a location behind the mirror. The image produced is laterally inverted but maintains the same size as the object. This virtual image cannot be projected onto a screen but can be seen by an observer looking into the mirror.
Which property of light wave makes the image seen through lenses?
The property of light waves that allows an image to be seen through lenses is the refraction of light. When light waves pass through a lens, they are bent or refracted, causing the rays to converge or diverge depending on the shape of the lens, resulting in the formation of an image.
How does LCD save power?
LCD (Liquid Crystal Display) saves power primarily by using a backlight that illuminates the screen, which can be adjusted for brightness. Unlike older display technologies such as CRTs, LCDs do not emit light themselves; instead, they manipulate light from the backlight to create images. Additionally, LCDs can turn off individual pixels or sections of the screen when displaying darker images, reducing overall energy consumption. This efficiency makes LCDs particularly advantageous for battery-operated devices like laptops and smartphones.
