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A lens is the type of device that forms images by changing the direction but not the speed at which light travels. This is achieved through refraction, where the bending of light rays converges or diverges to create an image.

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What ultrasonic device records velocity mapping and imaging?

An ultrasonic Doppler device is commonly used for recording velocity mapping and imaging. This device works by emitting ultrasonic waves that bounce off moving blood cells and produce velocity measurements based on the Doppler effect. These measurements can then be used to create images showing the velocity and direction of blood flow in vessels or organs.


How do mirrors and lenses affect light rays?

Mirrors can reflect light rays, changing their direction without altering their wavelengths. Lenses can refract light rays, bending them as they pass through the lens and converging or diverging them to form images. Mirrors can create virtual or real images depending on the curvature, while lenses can produce real, virtual, upright, or inverted images based on the lens type and object distance.


What is difference between lens and mirror with table?

A lens is an optical device that refracts light to form an image, while a mirror is an optical device that reflects light to form an image. A lens uses refraction to bend light rays, while a mirror uses reflection to change the direction of light rays. Both lenses and mirrors can be used to focus light and form images.


What type of device forms images by bending light?

A camera or a lens forms images by bending light. The light rays are focused through a lens onto a sensor or film, where the image is captured.


What propertys of light do mirrors demonstrate?

Mirrors demonstrate the property of reflection, where light bounces off the mirror surface according to the law of reflection. They also show that light travels in straight lines and can change direction when it strikes a reflective surface. Additionally, mirrors can produce images by reflecting light in a way that preserves the orientation and size of objects.