A periscope works on the principle of total internal reflection of light. Made with the help of two right angle prisms, the principle can be observed at the prisms' back face.
The Reflection.
it reflects
A light bulb.
You can use the word Periscope a few ways in a sentence. You can write the sentence I am going to periscope the website.
Periscopes A periscope is a instrument of observation used for naval use or for other war-like purposes. In fact the first periscope prototype was made by Johann Gutenberg which was used to enable people to see over the heads of the crowd at the Vigintennial religious festival at Aachen. In the navy it is used in submarines to view possible threats such as enemy submarines or sea mines. Marie Davey built the first naval periscope, a simple, fixed periscope using mirrors in 1854. A periscope works 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 and then out to the person's eye.
The Reflection.
it reflects
A light bulb.
The answer is that one mirror inside the periscope is meant to reflect the light onto the other mirror so that it goes back into your eyes. It was popularly used in World War I to see over the trenches without being a heavy target to artillery. It is also still used in submarines to see above water level whilst staying submerged.For a diagram that will (should) help, copy and paste the link below:http://www.madsci.org/posts/archives/2000-05/959444445.Eg.1.jpg
a perascope uses light by bouncing it off mirrors
You can use the word Periscope a few ways in a sentence. You can write the sentence I am going to periscope the website.
The refraction.
There are no mirrors in a periscope - they use prisms. But you could use two at 45 degrees to the object and observer, parallel to one another
The word "periscope" is a noun. It refers to a device used for seeing over obstacles or around corners, typically by the use of mirrors and lenses.
Yes! Actually it is determined by how the periscope was made. The cheap ones often sold around parades and large crowds are made of cardboard and mirrors, using reflection to provide a view. More sophisticated devices in submarines and tanks will use prisms to bend the light, using refraction to change the direction of the light and provide magnification.
Periscopes A periscope is a instrument of observation used for naval use or for other war-like purposes. In fact the first periscope prototype was made by Johann Gutenberg which was used to enable people to see over the heads of the crowd at the Vigintennial religious festival at Aachen. In the navy it is used in submarines to view possible threats such as enemy submarines or sea mines. Marie Davey built the first naval periscope, a simple, fixed periscope using mirrors in 1854. A periscope works 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 and then out to the person's eye.
The Captain used the periscope to locate the enemy ships.A periscope is the eye of a submarine.