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A focal point is the point where reflected light rays meet along an optical axis.
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What term indicates the point where reflected light ray meet along an optical axis?
A focal point is the point where reflected light rays meet along an optical axis.
What term indicates the point where reflected light rays meet asking an optical axis?
The term that indicates the point where reflected light rays meet along an optical axis is the focal point.
What is the point on a concave mirror optical axis through which every light ray that travels parallel to the optical axis toward the mirror moves after being reflected?
The focus of a concave mirror is the point on its optical axis where light rays parallel to the axis converge after being reflected.
Why doesn't light escape from the sides of an optical fiber?
optical fibres are made out of materials with high refractive index, this ensures that the light is always reflected back inside the fibre..
What are optical microphones?
Optical microphones are type of a microphone in which the movement of the microphone membrane is sensed optically. Usually there is a light source and photo-detectors to capture the light reflected back from the membrane.
Why is it necessary for amplifiers to be placed at regular intervals along an optical fiber when transmitting over long distances?
Some of the light injected by the optical transmitter is lost along the length of the fiber as the light travels. The optical receiver needs a minimum amount of light to function properly. Therefore optical repeaters must be installed at intervals along the path to keep the light level above the level needed by the last receiver.
What is an Optical Telescope for?
It is used to observe features of stars, planets, and other celestial objects by their visible light (generated or reflected).
What is the optical device that projects an enlarged version of an opaque object onto a screen by means of a reflected light?
This is known as an episcope.
Which types of electromagnetic waves can be used to send signals along optical fibers?
Only light is used to send signals along optical fibres. That's why this type of fibre is described as "optical". Fibres designed to conduct electrical signals are referred to as "wires".
Can waves be sent down an optical fiber in the form of light?
Yes, waves can be sent down an optical fiber in the form of light. Optical fibers are specially designed to guide and transmit light waves over long distances with minimal loss. The light waves travel through the core of the optical fiber and are reflected off the walls due to total internal reflection, allowing for efficient transmission.
Is it true An optical fiber can make a light beam travel in a path that is curved or twisted?
Yes, that is true - and that is commonly used in modern technology, but especially to transmit information. Note that in an optic fiber, light travelling along the fiber is simply reflected back inside, if it reaches the borders.
What happens to light rays as they travel along an optical fiber?
Light rays traveling along an optical fiber undergo total internal reflection at the core-cladding interface, which helps contain the light within the core. This allows the light to travel long distances without significant loss of signal strength.
