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Because the bottem mirror which is set and 45 degrees the light bounces off of and goes up at exactly 90 degrees that light then bounces off the top mirror and out a hole for you to look through.
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∙ 11y ago
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What angles would you need between two mirrors to give you nine reflected images?
At angle of 30 two mirrors will give nine reflected images.
Why semi cone angle is set between10 degree and 15 degree?
It does not need to be. It can be smaller or larger.
What angle is found on a triangle?
a 90 degree, improve this answer if you need to, im fine with it....
How do you construct a 110-degree angle with the help of a compass?
You'll also need a protractor to construct a 220 degree angle which can then be bisected by means of a compass and a straight line to form two 110 degree angles.
What degree cuts do you need to make an equal octagon from wood?
Each exterior angle is 45 degrees (interior angle = 135 degrees).
How does a periscope work?
Old trench periscopes worked by using two mirrors to bounce light from one place to another. A typical periscope uses two mirrors at 45 degree angles to the direction one desires to see. The light bounces from one to the other andthen out to the persons eye.If there is an object in front of you, any nearby light source (i.e the sun, a lamp etc.) bounces straight rays of light onto the object and then into your eyes, enabling you to see it. However, if the object is not within straight lines of your eyes, the light will not find them and you will not be able to see the object (since light only travels in straight lines).But a periscope works using the laws of reflection. Reflective objects like mirrors work by bouncing light so it carries on in a straight line but alters it's route, according to the angle of the mirror to the light source. This means that if the mirror was at a 45 degree angle to the light source then it would bounce off at a perpendicular (90 degree) angle. That is how a periscope works.The important fact to note when considering a periscope is that the laws of reflection mean that the light hitting a mirror at an angle is reflected off at twice the angle of the mirror. Thus a 45 degree mirror reflects light rays through 90 degrees.Submarine PeriscopesSubmarine optical periscopes don't use mirrors due to their fragility and susceptibility to environmental conditions/changes, requiring special coatings. Instead, they use refractive prisms.The newer U.S. Virginia-class and British Astute-class boats use neither; they use a Photonics Mast, which is essentially a hi-resolution camera array that is raised above the waterline. This has many advantages, the primary one being that the Control Room need not be directly under the main sail as in all previous modern submarine designs.
What is degree measurement of an angle?
I need to know how to find each angle measured to the first degree. Such as: Sin B= 0.4848
What angles would you need between two mirrors to give you nine reflected images?
At angle of 30 two mirrors will give nine reflected images.
Two angles whose sum is 180 degrees?
Two 90 degree angles create a perpendicular angle. A 60 degree angle and 120 degree angle also create a 180 degree sum.
Why are two mirrors needed in a periscope?
A simple mirror will allow you to see around a corner, but to see above an object or wall, you need two mirrors aligned in a certain way. See the related link below for more information and some very helpful diagrams.
Why semi cone angle is set between10 degree and 15 degree?
It does not need to be. It can be smaller or larger.
How do you construct 105 degree angle with using compass?
with compass.........at 90+60degree angle,,,,,,,,, * * * * * and 90 + 60 = 105??? You need to draw a 90 degree ange and bisect it to give a 45 deg angle. Then add a 60 degree angle. 45 + 60 = 105.
What angle does your elbow need to be when you shoot a basketball?
i beleive a 45 degree angle and when u are getting ready to shoot ur elbow goes 180 degree's as it stretches :)
What are the materials you need to make a periscope?
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What angle is found on a triangle?
a 90 degree, improve this answer if you need to, im fine with it....
How do you construct a 110-degree angle with the help of a compass?
You'll also need a protractor to construct a 220 degree angle which can then be bisected by means of a compass and a straight line to form two 110 degree angles.
How do you draw a 105 degrees angle?
Draw a line segment AB. Put your compass point at B and stretch the compass out until it is at point A. Now draw a circle. Now move the compass point to B, leaving the compass opening the same as before and draw another circle. The circles will intersect in two points. Call them C and D. Draw CD and name its intersection with AB as the point E. angle CEB is a right angle. Now you need to bisect the 90 degree angle you just constructed to get two 45 degree angles. Look in your book as to how to bisect an angle. The angle CAB = 60 degrees. So bisect it to get a 30 degree angle and then bisect it to get a 15 degree angle. You can get a 105 degree angle by adding the 90 degree angle and the 15 degree angle. Similarly, you can get a 75 degree angle by subtracting the 15 degree angle from 90 degrees. Look in your book on how to copy an angle.
