Optical square is a marvelous device that can help you measure angles and set out right angles with ease. It is used in surveying, which is the art of measuring and mapping the land. But how does optical square work and what can you do with it? In this article, we will uncover the secrets of an optical square in an easy way. You will learn how to ace any question related to optical square with flair and precision. And don’t forget to take a Free Mock Test to test your knowledge and skills on this topic.
Take 1 FREE SSC JE Civil Engineering 2023 Mock Test! And Discover How to Clear the Exam!
An optical square is a tool utilized for establishing right angles. It comprises a compact circular metal box measuring 5 cm in diameter and 1.25 cm in depth, with a movable metal cover to shield the slits.
The working principle of the optical square is based on the concept of reflecting surfaces, where the angle formed between the incident ray and the last reflected ray is twice the angle between the mirrors. In this particular optical square, the angle between the mirrors is a fixed 45 degrees, resulting in a 90-degree angle between the horizon sight and the index sight.
Q. The construction of an optical square is based on the principle of
(a) Reflection
(b) Refraction
(c) Double refraction
(d) Double reflection
ANS: (d)
FREE SSC JE Civil Engineering 2023 Mock Test: Are You Ready for the Challenge? Find Out Now!
The Haryana Govt. has released the HKRN Recruitment 2024. Candidates can apply online before the…
Read The Hindu Editorial Vocabulary to know difficult words with its meanings. We provide monthly…
Read The Hindu Editorial Vocabulary 19th May 2024 start learning new words and its meanings…
JAIIB Exam Date 2024 has been released on the official website. JAIIB Exam has been…
SSC GD Result 2024 will be released on the official website. The details about SSC…
SSC GD Physical Test 2024 is conducted in two stages PST and PET separately for…