FRESNEL Study guides, Class notes & Summaries

Sonography Canada CORE (Physics) Questions With accurate Answers(Latest Update 2023)what is a transducer? -ANSWER anything that converts one form of energy to another form of energy what does an ultrasound transducer do? -ANSWER converts electropotential energy into mechanical and mechanical energy into electropotential energy what is the curie point? -ANSWER if a crystal is heated beyond the curie point (360 degrees for PZT) the crystal can lose piezoelectric effects what material is t...

COT-Certified Ophthalmic Technician Exam Questions and Answers 2024| 100% Correct! Informed Consent Form -Answer-The patient signs this prior to surgery; it outlines the procedure and the RBAs Thyroid Disease -Answer-The systemic disease associated with eye findings referred to as Graves' Disease Diabetic Retinopathy -Answer-Disease which is indicated by the presence of microaneurysms, dot/blot hemes, and lipid exudates from a leakage of the retinal vessels Epinephrine/Intravenous Cor...

Light is electromagnetic energy with ____ frequency and a ______ shorter wavelength - Answer- Higher then shorter fiber optics transmission takes place in _____ portion of the light spectrum - Answer- IR A simple fiber optic System consist of what 4 parts - Answer- Transmitter, fiber optic cable, receiver, connecters What absolute power is Dbm referenced to - Answer- 1 milliwatt Absolute power in optical fiber is specified as - Answer- Dbm Attenuation in optical fiber is lowest at...

The ability of the eye to focus on objects at different distances - Accommodation Fresnel optics - Press on prism Frame material that resist stretching with heat - Nylon Bridge type that spreads weight over the greatest area - Saddle Amount of jump image is not affected by - The seg inset Double vision - Diplopia Modern AR coated lenses transmit how much light - 99.5% Shortest wavelength - Violet The condition where Rays of light focus behind the retina - Hyperopia Condition where press...

The ability of the eye to focus on objects at different distances - ️️Accommodation Fresnel optics - ️️Press on prism Frame material that resist stretching with heat - ️️Nylon Bridge type that spreads weight over the greatest area - ️️Saddle Amount of jump image is not affected by - ️️The seg inset Double vision - ️️Diplopia Modern AR coated lenses transmit how much light - ️️99.5% Shortest wavelength - ️️Violet The condition where Rays of ...

Fiber Optics (Light Brigade) Exam Questions and Answers 100% Pass When was the first North American commercial fiber optic system installed? - Answer- 1977 What is a mode in an optical fiber? - Answer- Path What are the "three Cs" of an optical fiber? - Answer- Core, Cladding, Coating What are the three critical factors to be considered when working with a fiber optic network? - Answer- Attenuation, Dispersion, Reflection What does the acronym ITU represent? - Answer- International Tel...

Certified Wireless Design Professional (CWDP) CWDP-303 Materials V8.02 | Killtest Exam 2023/2024 You are conducting a physical site survey where heavy machinery is repaired. What is a common item required specifically for this type of survey? A. Personal Protective Equipment (PPE) B. Low gain antennas C. Low power APs D. Indoor APs - ANSWER-A. Personal Protective Equipment (PPE) A company wants to connect its headquarters to its remote office that is 13 kilometers away using a wirel...

The ability of the eye to focus on objects at different distances correct answers Accommodation Fresnel optics correct answers Press on prism Frame material that resist stretching with heat correct answers Nylon Bridge type that spreads weight over the greatest area correct answers Saddle Amount of jump image is not affected by correct answers The seg inset Double vision correct answers Diplopia Modern AR coated lenses transmit how much light correct answers 99.5% Shortest w...

Q. what word describes the bending of an RF signal as it passes through a medium of a varying density from that of free space - Refraction Q. What can cause an excessively high VSWR (voltage standing wave ratio)in a WLAN RF transmission line? - An impedance mismatch in the RF cables and connectors Q. What factors influence the distance that an RF signal can be effectively received? - *Receiving station's radio sensitivity *Free Space Path Loss *Transmitting station's output power Q. As...

ETA Fiber Optic Installer Certification - Study Guide Exam Answered. Light is electromagnetic energy with a _____ frequency and a _____ wavelength compared to radios. What type of light is used in fiber optic transmissions? What are the four items needed for a fiber optic system to work? 1 mW is the same as what in dBm? How is the power measured in fiber optics? What fiber optic wavelength has the lowest loss? What wavelength windows are used most for fiber optic communications? - What year was ...