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longitudinal velocity of aluminum is .25 shear velocity is .12
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How does a Polypectomy work?
The polyps are located and removed with a wire snare, ultrasound, or laser beam
What is a straight beam of light called?
A ray.
Total filtration for an xray beam is 2.5mm of lead or aluminum?
Aluminium
What is the shape of the path of a laser beam?
Since a laser beam is light all moving on the same direction, the path of a laser beam will be a straight line, inless it is redirected by a reflective surface.
A narrow beam of light that travels in a straight line is a?
A laser
How velocity modulation is different from normal modulation?
As we know normal modulation is superimposing the wave with another carrier signal but the concept of velocity modulation is totally different, as The modulation in velocity of a beam of electrons or ions caused by passing the beam through a high-frequency electric field, as in a cavity resonator there is no concept of superimposition.
Why is the beam of light from a flashlight that shining in fog straight?
scattered light
What is it called when a group of rays are travelling in straight lines?
Beam of light
Why is the beam of light from flashlight that is shining in fog straight?
scattered light
Why is it possible to produce a very narrow beam with ultrasound?
The definition of Ultrasound is very short wavelengths of sound used in a similar way to x-rays. The reason that ultrasound is used is the fact that sound does can be used for getting moving pictures of internal bits of the body that x-rays can show as accurately
How do flashlights direct their light beams?
There is aluminum reflector around the LED source to firect the beam of the flashlight.
Why is the beam of light from a flashlight that is shining in heavy fog straight?
scattered light
