answersLogoWhite

0

Acoustic mirrors were used in the early 20th century as early warning devices to detect approaching enemy aircraft by reflecting and amplifying sound waves. They were part of experimental sound detection systems before the invention of radar technology.

User Avatar

AnswerBot

1y ago

What else can I help you with?

Related Questions

What objects use mirrors?

Objects such as telescopes, microscopes, and rearview mirrors in vehicles utilize mirrors for reflection of light and image magnification. Additionally, makeup mirrors, periscopes, and solar cookers also make use of mirrors for various purposes.


Why are convex mirrors used for security purposes?

because their field of view is wide.


Convex mirror are used for secruity purposes the images they form?

convex mirrors are used for security purposes as they have a wide field of view.


What kind of mirrors are typically used for security purposes?

One-way mirrors, also known as two-way mirrors, are typically used for security purposes. These mirrors allow one side to see through while the other side appears as a mirror, making them suitable for monitoring areas without being easily detected.


When convex mirrors are used for security purposes the images they form are real images?

false


What devices have mirrors in them?

Some devices that have mirrors in them include smartphones (front-facing camera), digital cameras, telescopes, microscopes, and selfie sticks. Mirrors are used in these devices for reflection and imaging purposes.


What are the kind of mirrors?

There are various types of mirrors, including plane mirrors (flat and smooth), concave mirrors (curve inward), convex mirrors (curve outward), and two-way mirrors (reflective on one side and transparent on the other). Mirrors can serve different purposes, such as reflection, magnification, or focusing light.


What mirrors make you look funny?

Funhouse mirrors, also known as distorted mirrors, are designed to distort reflections and make you look funny by elongating or shrinking body parts, creating a funhouse effect. These mirrors are commonly found in amusement parks and carnivals for entertainment purposes.


Is a concave mirror in a shop to detect shoplifters nd why?

No, a concave mirror is typically not used in a shop to detect shoplifters. Convex mirrors are more commonly used for surveillance purposes in shops because they provide a wider field of view. Concave mirrors are more often used for focusing and magnifying purposes, such as in makeup mirrors or reflecting telescopes.


What is an acoustic mirror?

An acoustic mirror is a large dish-shaped structure designed to amplify and reflect sound waves. They were used in the early 20th century for detecting approaching aircraft before the invention of radar. Acoustic mirrors are now considered historic relics.


When convex mirrors are used for security purposes the images they form are real image True or False?

False. Convex mirrors used for security purposes create virtual images, which are formed behind the mirror and appear smaller than the object being reflected.


What are the key considerations for a successful acoustic ceiling installation?

Key considerations for a successful acoustic ceiling installation include proper planning, ensuring the ceiling material is suitable for acoustic purposes, accurate measurements, proper installation techniques, and attention to detail to ensure a seamless finish.