Which way the antenna is pointing.
When a radar beam hits an object, it gets reflected back towards the radar receiver. The time difference between sending the radar signal and receiving the reflected signal is used to calculate the distance of the object from the radar. The radar can also determine the object's speed and shape based on how the radar signal is reflected.
To change the direction of a light beam, you can use mirrors or lenses to reflect or refract the light in the desired direction. Adjusting the angle of the mirror or lens will change the direction of the light beam. Alternatively, you can physically move the light source or the object the light is reflecting off of to change the direction of the beam.
A mirror or a prism can be used to deflect a laser beam. Mirrors reflect the beam at an angle, while prisms can refract and redirect the beam in a different direction.
No, a laser beam travels in a straight line through air unless it reflects off a surface. The direction of a laser beam can be altered by using mirrors or prisms, but it does not change direction on its own in mid-air.
The beam of light entering your eye can change direction at the cornea, the lens, and the vitreous body. These structures help focus the light onto the retina at the back of the eye, where the images are formed.
When a radar beam hits an object, it gets reflected back towards the radar receiver. The time difference between sending the radar signal and receiving the reflected signal is used to calculate the distance of the object from the radar. The radar can also determine the object's speed and shape based on how the radar signal is reflected.
beam
In a relationship stand point it means that you are trying to keep that relationship from leaking out to others. !z Flying under the radar means to fly an aircraft below the scan of a radar beam. The reason why, ther is a cut off in elevation angle that cuts off the radar beam before it intersects with the sea or land. When a radar beam is almost parallel top a flat surface that is also in the beam returns from a vertical can suffer from multi path effect that cause cancelations, and since the beam giver a bigger area with range the effect become greater with range. Radar engineers know this and build the elevation profile to be cosec beam-shape in such that the radar beam cut off just before an intersection with a flat surface like land or sea. Given this cut off this mean that the radar multipath effect does not occur and detection at altitudes higher then the cut off are not going to surfer from multi path, however in bean that there is a area under the radar beam where the radar is not sensitive to targets, where a aircraft can fly under the Radar. However this phrase has come to mean doing something without being detected.
Horizontal beam width = 4.0 degrees Vertical beam width = 1.6 degrees
To change the direction of a light beam, you can use mirrors or lenses to reflect or refract the light in the desired direction. Adjusting the angle of the mirror or lens will change the direction of the light beam. Alternatively, you can physically move the light source or the object the light is reflecting off of to change the direction of the beam.
Because ice is transparent.
no
A beam of electromagnetic waves is bounced off the car
Radar and communications are two different applications of radio waves. For radar, directional antennas are used, and the normal antenna for a ship installation would be a parabolic reflector with a rectangular aperture about 5 times wider than its height. This gives a narrow beam in the horizontal direction, and pulses are sent out and detected after being reflected by the target.
a weather radar
Sometimes tornadoes can evade radar detection. This most often happens if the tornado is short lived, and thus is missed as the radar beam rotates, or occurs far away from the radar. Fortunately this occurs less often with strong tornadoes.
Directional antennas work a bit like the reflectors behing the bulbs in flashlights, shaping the beam to go mostly in one direction. You get better performance that way, assuming you can keep the antenna pointing in the right way.